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The 2021 Audi A4 Review reveals outstanding value for American buyers in 2025, with used prices ranging from $14,999 to $29,995 after 63% depreciation from the original $40,145 MSRP[1][2]. Consumer Reports rates this luxury sedan with “a very high rating that’s top in its class with excellent reliability for the last four years”[3], while the IIHS Top Safety Pick recognition and mild-hybrid technology make it compelling. Standard quattro all-wheel drive, 28 MPG combined efficiency, and proven German engineering create exceptional used car value[4]. With documented owner experiences showing 93,000 trouble-free miles and 18% lower fatal accident likelihood versus average vehicles, the 2021 A4 represents premium luxury at accessible costs for discerning American buyers seeking reliability and refinement.
2021 Audi A4: Quick Overview & What You Need to Know
Essential US Specifications & MSRP
The 2021 Audi A4 delivers comprehensive luxury sedan excellence with remarkable depreciation creating unprecedented buying opportunities for American consumers. This detailed specification overview demonstrates why automotive experts consistently recommend this model year for used car buyers seeking German engineering at accessible pricing.
| US Market Specification | 2021 Audi A4 |
|---|---|
| Original MSRP | $40,145 (Premium 40 TFSI) |
| Current Used Price Range | $14,999 – $29,995 |
| Top MSRP | $49,900 (Prestige S line) |
| Base Engine | 2.0L TFSI turbocharged 4-cylinder (201 hp) |
| S line Engine | 2.0L TFSI turbocharged 4-cylinder (261 hp) + mild hybrid |
| EPA Rating Base | 28 MPG combined (25 city / 34 highway) |
| EPA Rating S line | 27 MPG combined (24 city / 31 highway) |
| 0-60 mph Base | 6.5 seconds |
| 0-60 mph S line | 5.3 seconds |
| Drivetrain | Standard quattro all-wheel drive |
| Cargo Capacity | 12.0 cubic feet |
| US Safety Rating | IIHS Top Safety Pick |
| Basic Warranty | 4 years / 50,000 miles |
| Depreciation | ~63% over 4 years |
The dramatic depreciation from original pricing creates exceptional value opportunities, with potential savings exceeding $25,000 compared to new vehicle acquisition costs[2].
What’s New for 2021 Model Year Changes
The 2021 Audi A4 introduced significant updates targeting American luxury buyers, most notably the addition of mild-hybrid technology across S line variants and standard all-wheel drive across all models. Car and Driver notes it “advances a proven formula” with “more standard gear and a 261-hp mild-hybrid system”[1].
Key 2021 updates include standard wireless Apple CarPlay addressing American connectivity priorities, enhanced MMI touchscreen interface improving user experience, and Audi Pre Sense safety technology across all trim levels providing comprehensive protection[4]. The mild-hybrid system enhances efficiency during stop-and-go traffic common in US metropolitan areas.
These updates reflect Audi’s understanding of American market priorities: reliable technology integration, comprehensive safety features, and proven engineering quality that maintains value throughout extended ownership cycles typical of American luxury vehicle buyers.
Target American Buyer Profile & Used Market Appeal
US News describes the 2021 A4 as “an upscale small car with strong yet fuel-efficient engines, a gentle ride, a classy cabin and a plethora of tech and driver-assistance features”[5]. CNET confirms it offers “no-nonsense, entry-level luxury” starting at $40,145[1].
This positioning appeals to American professionals seeking proven German engineering, understated luxury, and excellent reliability without the ostentatious styling found in some competitors. With 63% depreciation creating exceptional used car value, the 2021 A4 attracts buyers seeking premium features at significantly reduced costs.
Conservative luxury buyers, business professionals, and value-conscious Americans find the 2021 A4’s balanced approach ideal for both personal and professional transportation requirements throughout diverse American regional markets.
Performance & Real-World MPG: US Highway Testing
Enhanced Mild-Hybrid Powertrain Options
The 2021 A4 offers refined powertrain choices addressing diverse American buyer priorities: the base 40 TFSI with 201 horsepower prioritizing efficiency for daily commuting, and the advanced 45 TFSI producing 261 horsepower with mild-hybrid assistance for performance-oriented Americans[4].
Car and Driver testing confirms the S line variant achieves 0-60 mph in 5.3 seconds with real-world highway fuel economy up to 40 MPG, validating its competitive positioning against German rivals while maintaining luxury refinement expectations[1]. The mild-hybrid system provides seamless power assistance during acceleration while enhancing overall efficiency.
Powertrain Advantages:
- 40 TFSI Base: Optimal for efficiency-focused American commuters
- 45 TFSI S line: Performance with mild-hybrid efficiency enhancement
- Proven EA888 engine: Documented reliability through extensive American ownership
- Immediate response: Turbocharging provides excellent low-end torque delivery
The sophisticated engineering balance between performance and efficiency serves diverse American driving requirements from urban commuting to recreational highway travel across varied terrain conditions.
EPA vs Real-World US Fuel Economy Validation
EPA ratings show 28 MPG combined for base models and 27 MPG for S line variants[6]. Cars.com real-world testing achieved 26.5 MPG in mixed driving conditions, closely matching EPA estimates under typical American driving scenarios including urban traffic and highway cruising[7].
CNET confirms achieving EPA ratings “even in gross, wintry conditions,” demonstrating consistent performance across diverse American climate conditions from northern snow belts to southwestern desert regions[1]. This reliability proves crucial for American buyers requiring dependable efficiency regardless of seasonal weather variations.
Real-World Efficiency Results:
- Highway cruising: Up to 40 MPG under optimal conditions
- Mixed driving: 26.5 MPG validated through independent testing
- Winter conditions: EPA ratings maintained despite harsh weather
- Urban efficiency: Mild-hybrid system enhances stop-and-go performance
Quattro All-Wheel Drive Standard Across US Market
Standard quattro all-wheel drive addresses American buyer preferences for year-round capability across diverse climate zones from midwest snow belts to coastal mountain regions[1]. Extensive US owner feedback confirms exceptional winter performance with documented reports of confident handling in harsh weather conditions.
One American owner reports: “Winter driving this year has only given me more praise by the way this car handles the worst weather conditions getting me home safely while I see other makes stuck in snow and icy roads”[3]. This real-world validation demonstrates the system’s mechanical advantages over electronic competitors.
The sophisticated mechanical all-wheel drive system provides immediate traction response superior to electronic alternatives during challenging weather scenarios common throughout American regional markets experiencing seasonal extremes.
Interior Technology & American Luxury Expectations
Premium Cabin Design Meeting US Standards
Edmunds praises the cabin as “cool and impeccably constructed” with spacious rear seats providing “enough for adults” during typical American family transportation scenarios[8]. The interior emphasizes traditional luxury materials over flashy technology, appealing to conservative American buyers who prefer substance over style.
Material quality throughout the cabin meets German luxury standards with soft-touch surfaces, genuine aluminum trim, and precise fit-and-finish reinforcing the premium positioning. American buyers consistently praise the build quality as superior to many competitors in comparable price ranges while maintaining timeless aesthetic appeal.
The design philosophy reflects German engineering priorities emphasizing durability, functionality, and understated elegance that ages gracefully throughout extended ownership periods typical of American luxury vehicle buyers seeking long-term value retention.
Technology Integration for US Consumer Preferences
Standard features include MMI touchscreen interface, wireless Apple CarPlay addressing American smartphone integration requirements, satellite radio for long-distance travel, and comprehensive driver assistance technologies increasingly expected by American luxury buyers[5].
US News highlights the “plethora of tech and driver-assistance features” meeting American connectivity expectations while avoiding overwhelming complexity that can frustrate daily operation[5]. The technology approach balances advancement with user-friendly operation for typical American driving scenarios.
Technology Highlights:
- Wireless Apple CarPlay: Seamless smartphone integration without cables
- MMI touchscreen: Intuitive interface with physical backup controls
- Driver assistance suite: Comprehensive safety technology across all trims
- Premium audio: Enhanced sound quality for American music preferences
Storage and Comfort for American Lifestyles
The 12.0 cubic feet of trunk space provides adequate storage for American daily requirements including groceries, business materials, and recreational equipment[1]. Interior appointments include heated front seats addressing cold-climate needs, three-zone climate control for diverse American weather conditions, and practical storage solutions designed for typical lifestyle requirements.
The thoughtful design reflects understanding of American suburban and professional needs, from business material transportation to weekend recreational equipment storage during typical family activities.
Safety Ratings & Long-Term Reliability for US Ownership
Complete US Safety Assessment
The Insurance Institute for Highway Safety recognized eight 2021 Audi models including the A4 with Top Safety Pick status when equipped with appropriate headlight systems[4].
| Safety Test Category | 2021 Audi A4 Result |
|---|---|
| IIHS Overall Status | Top Safety Pick |
| Crashworthiness Tests | Good ratings in all six tests |
| Front Crash Prevention | Superior ratings |
| Standard Safety Features | Audi Pre Sense across all trims |
| Vehicle Lifetime Fatality | 0.0383% chance |
| Safety vs Average Vehicle | 18% less likely fatal accident |
The comprehensive safety performance provides confidence for American buyers prioritizing crash protection and occupant safety during diverse driving scenarios from urban commuting to highway travel[9]. The 18% lower fatal accident likelihood versus average vehicles demonstrates superior engineering effectiveness.
Long-Term Reliability Data from US Sources
Consumer Reports gives the A4 “a very high rating that’s top in its class with excellent reliability for the last four years since this new style was released”[3]. This represents significant improvement over earlier Audi generations, reflecting enhanced manufacturing quality and engineering refinement addressing previous reliability concerns.
Real US owner feedback includes documented cases of trouble-free ownership, with one owner reporting: “93,000 miles and its been the best car I’ve ever owned” with only scheduled maintenance and minimal repairs[3]. Such experiences demonstrate the improved reliability characteristics of current-generation Audi vehicles.
Reddit owner experiences confirm reliability expectations: “Reliability should be pretty good, as long as you keep up with regular maintenance” with the EA888 engine and 7DSG transmission being “perfectly reliable provided you take care of them”[10].
Maintenance Requirements and Service Network
The 2021 A4 requires premium gasoline (91+ octane) and adherent maintenance schedules for optimal performance and reliability. Major service intervals occur at 40,000 miles including DSG transmission service, which proves crucial for long-term dependability. US owners report reasonable maintenance costs through Audi’s established dealer network providing professional service accessibility.
Maintenance Considerations:
- Premium fuel requirement: 91+ octane gasoline for optimal performance
- Service schedule adherence: Critical for maintaining reliability record
- DSG transmission service: 40,000-mile interval essential for longevity
- Dealer network accessibility: Professional service available nationwide
Cargo Space & American Family Practicality
Real-World Storage Analysis for US Lifestyles
The A4’s 12.0 cubic feet of trunk space adequately serves American daily requirements though trailing some competitors like the BMW 3 Series[1]. The sedan configuration limits versatility compared to SUV alternatives increasingly popular among American families requiring maximum cargo flexibility.
Testing reveals accommodation for multiple grocery bags, sports equipment, or business materials without compromising passenger comfort. The trunk design prioritizes usability over pure volume with wide opening and low load floor facilitating easy loading for typical American suburban lifestyle requirements.
For American buyers requiring maximum storage capacity, the sedan format presents limitations compared to crossover alternatives. However, the refined driving dynamics and luxury appointments compensate for cargo constraints in many usage scenarios.
Passenger Accommodation for American Families
Five-passenger seating with spacious accommodations meets average American family needs for daily transportation and medium-distance travel. Edmunds confirms rear seats provide adequate space for adults[8], though families with multiple children may prefer three-row alternatives for enhanced long-term utility and flexibility.
The cabin dimensions accommodate typical American family requirements including LATCH child safety seat anchors and appropriate installation space, though three-across seating remains challenging for larger passengers common in American markets.
Sedan vs SUV Considerations for US Market
While the sedan configuration limits cargo flexibility compared to SUV alternatives increasingly popular among American families, the sophisticated quattro all-wheel drive system and refined ride quality suit American professional and recreational driving requirements better than many crossover alternatives lacking driving refinement.
The 2021 Audi A4 represents traditional luxury sedan values appealing to buyers prioritizing driving dynamics, fuel efficiency, and luxury refinement over maximum cargo utility in an evolving American automotive marketplace.
2021 Audi A4 vs Key US Market Competitors
A4 vs BMW 3 Series: German Luxury Battle
The competitive landscape reveals distinct advantages for each German luxury sedan, with choice often reflecting individual buyer priorities and brand preferences among American consumers.
| Comparison Factor | 2021 Audi A4 | 2021 BMW 3 Series | Winner |
|---|---|---|---|
| Starting MSRP | $40,145 | $41,250 | Audi A4 |
| Base Horsepower | 201 hp | 255 hp | BMW 3 Series |
| S line Horsepower | 261 hp | 255 hp | Audi A4 |
| EPA Combined MPG | 28/27 MPG | 28 MPG | Tie |
| Standard AWD | Yes (quattro) | No (xDrive optional) | Audi A4 |
| Used Price Range | $14,999-$29,995 | Higher range | Audi A4 |
BMW dealers acknowledge: “While the A4 and the 3 Series are nearly identical in performance, the 2021 Audi A4 is the clear winner when it comes to luxury and refinement”[11]. This professional assessment validates the A4’s positioning in the competitive landscape[1][2].
A4 vs Genesis G70: Value vs Heritage
The Genesis G70 offers lower starting MSRP with superior warranty coverage (10 years/100,000 miles), appealing to value-conscious American buyers. However, the Audi provides established brand prestige, superior resale value, and more refined all-wheel drive technology proven through decades of development and real-world validation.
American buyers choosing Genesis prioritize warranty coverage and value pricing, while Audi buyers seek established luxury credentials and proven engineering heritage appreciated by conservative professionals requiring reliable luxury transportation.
A4 vs Mercedes-Benz C-Class: Luxury Refinement
Mercedes emphasizes interior luxury and brand prestige at higher pricing for status-conscious American buyers seeking maximum luxury credibility. The Audi provides more standard equipment including all-wheel drive at competitive pricing while delivering superior technology integration and proven reliability records.
The choice often reflects personal brand preference and individual priorities regarding luxury positioning versus practical value considerations in daily American driving scenarios.
Market Positioning in US Luxury Segment
Cars.com concludes: “Audi strikes a beautiful balance of sporty, luxurious and high-tech in the revised A4, delivering a satisfying compact sedan experience”[7]. This professional assessment demonstrates the A4’s successful positioning against established rivals while offering distinctive German engineering characteristics.
US Pricing & Total Cost Analysis for American Buyers
Complete 2021 US Pricing Breakdown
The structured pricing approach provided clear value differentiation across trim levels while maintaining competitive positioning against German rivals in the luxury sedan segment.
Original MSRP Structure:
- Premium 40 TFSI: $40,145 – Standard features, quattro AWD, wireless CarPlay
- Premium Plus 40 TFSI: $44,845 – Enhanced technology, driver assistance features
- Premium S line 45 TFSI: $46,145 – Mild-hybrid performance, sport styling
- Premium Plus S line: $50,445 – Sport performance with premium technology
- Prestige S line: $50,845 – Top-tier sport luxury configuration
Each configuration provided substantial value compared to competitors requiring expensive option packages for similar equipment levels[1][12].
Depreciation Analysis and Value Retention
Current used pricing shows 2021 models ranging from $14,999 to $29,995 with mileage from 12,410 to 112,306 miles[2]. This represents approximately 63% depreciation over 4 years, creating substantial savings opportunities for American used car buyers seeking luxury vehicles at accessible pricing.
Depreciation Factors:
- Luxury vehicle patterns: Premium cars experience steep initial value decline
- Market competition: Multiple German alternatives impact resale values
- Technology advancement: Newer model features influence older vehicle pricing
- Economic conditions: Interest rates and market factors affect luxury sales
Current Autvex analysis shows this depreciation level creating exceptional value opportunities for American buyers seeking proven luxury engineering at significantly reduced costs.
Available Financing and Used Car Market
TrueCar shows 74 used 2021 A4 models available nationwide with diverse trim levels and mileage ranges accommodating various American buyer budgets and requirements[2]. Used car financing rates typically range from 6.9% to 10.9% APR depending on credit scores, loan terms, and lender requirements.
As a discontinued model year, manufacturer incentives remain limited. However, the significant used car depreciation creates natural savings far exceeding typical incentive programs while retaining comprehensive luxury features and remaining warranty coverage.
2021 Audi A4 Used Market Analysis & Buying Guide
Current US Used Market Overview
The substantial depreciation from original MSRP creates compelling value propositions for American luxury buyers seeking German engineering at accessible pricing with proven reliability records.
Used Market Availability:
- Wide selection: 74+ vehicles nationwide across all trim levels
- Price range: $14,999 to $29,995 accommodating various budgets
- Mileage variety: 12,410 to 112,306 miles for different usage requirements
- Certified options: Limited CPO availability providing enhanced protection
- Geographic distribution: Available across major US metropolitan areas
The extensive availability ensures American buyers can find suitable options regardless of geographic location or specific feature preferences across the comprehensive trim level spectrum.
Essential Inspection Points for Used 2021 A4
Thorough pre-purchase inspection by qualified technicians can identify potential issues and provide negotiating leverage for American buyers evaluating used A4 models across different price ranges and condition levels.
Critical Areas to Examine:
- Service records: Complete maintenance history and schedule adherence verification
- DSG transmission: 40,000-mile service completion confirmation
- Quattro system: All-wheel drive engagement and proper operation testing
- Electronic functionality: MMI system, driver aids, and climate control operation
- Premium fuel usage: Verify owner used required 91+ octane gasoline consistently
- Vehicle history: CarFax/AutoCheck reports for accident, flood, or other damage
Professional inspection services can provide detailed assessments helping American buyers make informed decisions about specific vehicles under consideration for purchase.
Regional US Climate & Terrain Performance
Cold Weather Performance Validation
Extensive owner feedback confirms exceptional winter performance through standard quattro system across northern American regions experiencing harsh seasonal conditions. One owner reports confident handling “in the worst weather conditions getting me home safely while I see other makes stuck in snow and icy roads”[3].
CNET testing validates performance “even in gross, wintry conditions” with consistent EPA fuel economy achievement[1]. The mechanical all-wheel drive system provides immediate traction response superior to electronic alternatives during challenging winter scenarios common throughout American snow belt regions.
Winter Performance Benefits:
- Immediate traction response: Mechanical system advantages over electronic alternatives
- Proven reliability: Extensive owner validation across severe weather conditions
- Comfort features: Comprehensive heating systems for occupant comfort
- Consistent efficiency: EPA ratings maintained despite harsh conditions
Hot Weather & Sun Belt Suitability
Three-zone climate control proves effective in extreme southwestern US heat exceeding 110°F, maintaining comfortable cabin temperatures during desert summer conditions. The turbocharged engine maintains performance during high-temperature operation without heat-related power reduction common in some competitors.
Paint and interior materials demonstrate durability under harsh UV exposure typical of American Sun Belt conditions, with owners reporting minimal fading or degradation after extended solar exposure throughout southwestern regional markets.
Diverse American Road Condition Adaptability
The refined suspension accommodates varied US road conditions from smooth interstates to deteriorating urban infrastructure common across aging American metropolitan areas while maintaining comfort and handling balance suitable for diverse driving scenarios.
The engineering balance between comfort and performance serves American driving requirements from daily urban commuting to recreational highway travel across varied terrain conditions throughout different regional markets nationwide.
Should American Buyers Purchase a 2021 Audi A4?
Ideal Match for These US Buyer Profiles
The 2021 A4 perfectly suits American buyers who prioritize proven German engineering with exceptional used car value created by substantial depreciation while maintaining comprehensive luxury features and reliability records.
Perfect for buyers who value:
- Proven reliability: Consumer Reports top-in-class rating with documented owner success
- Standard all-wheel drive: Year-round capability for diverse American climates
- Absorbed depreciation: Substantial savings versus new vehicle pricing
- Professional styling: Conservative design suitable for business environments
- Advanced safety technology: IIHS Top Safety Pick with superior protection
Conservative luxury buyers, business professionals, and value-conscious Americans seeking proven engineering find the 2021 A4’s balanced approach ideal for both personal and professional transportation requirements throughout American markets.
Consider US Market Alternatives If You Prioritize
American buyers with specific priorities might find competitive alternatives better suited to individual requirements and budget constraints:
Maximum performance: BMW 3 Series offers higher base horsepower though at higher acquisition cost
Lowest acquisition costs: Genesis G70 provides comparable luxury at lower pricing with superior warranty
Maximum reliability: Lexus IS offers superior long-term dependability predictions and lower ownership costs
Cargo flexibility: Luxury SUVs provide enhanced American family utility and elevated seating positions
Final US Market Recommendation with Scoring
Overall Rating for American Buyers: 4.4/5 Stars
- Performance & Efficiency: 4.5/5 – Strong engines, excellent MPG, proven quattro system
- Value Proposition: 4.6/5 – Outstanding used car value with major depreciation absorbed
- Interior & Technology: 4.4/5 – Premium materials, comprehensive tech features, intuitive systems
- Safety & Reliability: 4.5/5 – Top Safety Pick recognition, Consumer Reports top rating
- Practicality: 4.0/5 – Adequate for sedan buyers, limited by cargo space constraints
Bottom Line for US Market
The 2021 Audi A4 represents exceptional value in the American luxury sedan market, offering proven German engineering with mild-hybrid technology and absorbed depreciation creating substantial savings opportunities. Best suited for buyers seeking reliable luxury, advanced safety features, and comprehensive technology at significantly reduced costs compared to new vehicle pricing while maintaining warranty coverage and luxury appointments.
Key Takeaways
- Outstanding depreciation advantage: 63% value decline over 4 years creates compelling used car opportunity with $25,000+ potential savings versus original MSRP for budget-conscious luxury buyers
- Consumer Reports top reliability credentials: “Very high rating that’s top in its class with excellent reliability for the last four years” validated by documented 93,000+ trouble-free owner experiences
- IIHS Top Safety Pick recognition excellence: Superior safety credentials including 18% lower fatal accident likelihood versus average vehicles providing family protection confidence
- Standard AWD competitive edge advantage: Quattro all-wheel drive included across all models beats German competitors requiring expensive AWD options at significantly higher costs
- Advanced mild-hybrid technology integration: 261-horsepower S line variants offer enhanced efficiency with proven performance delivering 0-60 mph acceleration in just 5.3 seconds
- Extensive used market availability nationwide: 74+ models available across all trim levels and mileage ranges providing diverse selection for American buyers with varying requirements
- Professional market positioning appeal: Conservative styling and traditional luxury interior perfectly suit American business environments without flashy design elements that age poorly
Frequently Asked Questions for US Buyers
What’s the real-world fuel economy for 2021 A4 in US highway and city driving?
EPA ratings show 28 MPG combined for base models and 27 MPG for S line variants[6]. Real-world testing by Cars.com achieved 26.5 MPG in mixed driving conditions[7], while CNET confirms achieving EPA estimates “even in gross, wintry conditions”[1]. Highway driving can achieve up to 40 MPG under optimal conditions with the mild-hybrid system enhancing efficiency during stop-and-go traffic.
How does it compare to BMW 3 Series and Mercedes C-Class for American buyers?
The A4 offers superior value with standard quattro AWD at $40,145 versus BMW’s higher pricing requiring expensive xDrive option[1]. Used market shows A4s from $14,999-$29,995 providing better depreciation performance than German rivals[2]. BMW dealers acknowledge the A4 wins on “luxury and refinement” while providing comparable performance characteristics[11].
Are there dealer incentives available for 2021 models?
As a discontinued model year, manufacturer incentives are limited. However, massive used car depreciation (63% over 4 years) creates natural savings far exceeding typical incentive programs[2]. Focus on used market opportunities for maximum value with potential savings exceeding $25,000 versus original pricing while retaining comprehensive luxury features.
Is the 2021 Audi A4 reliable according to major US reviews?
Consumer Reports gives it “a very high rating that’s top in its class with excellent reliability for the last four years”[3]. One documented owner reports “93,000 miles and its been the best car I’ve ever owned” with only scheduled maintenance[3]. Reddit owners confirm EA888 engine reliability: “perfectly reliable provided you take care of them” with proper maintenance[10].
Can it handle American winter conditions and summer heat effectively?
Standard quattro AWD excels in winter with owners reporting superior snow handling: “getting me home safely while I see other makes stuck in snow and icy roads”[3]. CNET testing confirms consistent performance in harsh winter conditions[1]. Three-zone climate control manages extreme southwestern heat effectively while maintaining engine performance across diverse American temperature conditions year-round.
References
- Car and Driver. (2020). 2021 Audi A4 Review, Pricing, and Specs. https://www.caranddriver.com/audi/a4-2021
- TrueCar. (2025). Used 2021 Audi A4 for Sale Nationwide. https://www.truecar.com/used-cars-for-sale/listings/audi/a4/year-2021/
- Edmunds. (2021). Used 2021 Audi A4 Consumer Reviews. https://www.edmunds.com/audi/a4/2021/consumer-reviews/
- Audi USA. (2020). Eight 2021 Audi models recognized for 2021 IIHS TOP SAFETY PICK. https://media.audiusa.com/releases/461
- US News. (2023). 2021 Audi A4 Review, Pricing, & Pictures. https://cars.usnews.com/cars-trucks/audi/a4/2021
- EPA. (2021). 2021 Audi A4 Fuel Economy Data. https://www.fueleconomy.gov/feg/bymodel/2021_Audi_A4.shtml
- Cars.com. (2021). 2021 Audi A4 Specs, Prices, MPG, Reviews & Photos. https://www.cars.com/research/audi-a4-2021/
- Edmunds. (2025). 2021 Audi A4 Review & Ratings. https://www.edmunds.com/audi/a4/2021/review/
- RealSafeCars. (2021). 2021 Audi A4 Safety Rating Analysis. https://realsafecars.com/car/2021_audi_a4/
- Reddit. (2024). How is the reliability on 2021 A4. https://www.reddit.com/r/Audi/comments/1djtbd8/how_is_the_reliability_on_2021_a4/
- BMW of Montgomery. (2024). 2021 BMW 3 Series vs Audi A4 Comparison. https://www.bmwofmontgomery.com/bmw-3-series-vs-audi-a4-montgomery-al.htm
- Audi Hampton. (2020). 2021 Audi A4 Configurations & Pricing. https://www.audihampton.com/2021-audi-a4-configurations.htm
I am a senior automotive analyst at Autvex. Expert vehicle evaluations, in-depth reviews, and objective analysis helping readers make informed automotive decisions with years of industry experience.
