This vehicle is no longer listed, so the estimate starts from $35,925 — the typical market price for this build. Move the numbers to match your own loan.

Vehicle price

Down payment

10% down

Interest rate (APR)

7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.

Loan term

Estimated monthly payment

$640

per month

60 months · 7.0% APR · $3,593 down

Amount financed

$32,332

Total interest

$6,068

Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.

Decoded from the VIN

NHTSA build data for WAUC4AF40MA020344

Trim

Quattro Prestige

Engine

3.0L · V6

Horsepower

349

Drivetrain

AWD/All-Wheel Drive

Transmission

Automatic

Body

Sedan/Saloon

Fuel

Gasoline

Doors

Model year

2021

Full factory specs for this build →

✓ Backup camera
✓ Blind-spot monitor
✗ Lane departure
✓ ABS
✓ Electronic stability

Fuel economy (EPA)

Combined

MPG

City

MPG

Highway

MPG

$2,020 /yr est. fuel

Assumes 15,000 miles a year at $3.10/gallon and 23 MPG combined.

5-year cost to own

Beyond the sticker: what this 2021 Audi S4 likely costs over five years at 15,000 mi/yr.

Depreciation $12,640

Fuel $10,100

Insurance $8,000

Maintenance & repairs $5,625

Total, 5 years $36,365

Estimate — insurance and taxes vary by driver and state.

Safety & recalls

NHTSA crash tests & recall campaigns for this model year

The 2021 Audi S4 has 4 recall campaigns as of August 2026. NHTSA rated it 5 out of 5 stars for rollover. EPA combined fuel economy: 23 MPG.

Rollover

★★★★★

5 of 5 · NHTSA

Tested configuration: 2021 Audi S4 4 DR AWD

4 recall campaigns on this model year

Check accident & title history →

SEAT BELTS

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan,…

NHTSA campaign 21V606000
TIRES

Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet,…

NHTSA campaign 22V034000
SUSPENSION

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6…

NHTSA campaign 21V295000

Recall campaigns apply to the model year, not to one car. Check remedy status for this VIN at nhtsa.gov/recalls.

Model-level data for the 2021 Audi S4 from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed August 28, 2026.

Where the price is heading

Typical asking price for a 2021 Audi S4 over the last 6 months — the market softened $2,050 in that span.

Apr May Jun Jul Aug Sep

Monthly price table

Month	Typical price
April 2026	$35,998
May 2026	$35,392
June 2026	$35,990
July 2026	$35,495
August 2026	$34,998
September 2026	$33,948

How it compares to rivals

Median asking price for comparable body styles listed near this car

Model	Median price	For sale nearby	vs this car
2021 Audi S4 Quattro Prestige (this car)	$35,925	5	—
2022 Honda Accord	$23,787	55	−$12,138
2022 Toyota Camry	$21,549	51	−$14,376
2023 Tesla Model 3	$22,999	41	−$12,926
2020 Toyota Corolla	$18,816	30	−$17,109
2020 Honda Civic	$19,736	27	−$16,189

Cheapest active listings of each comparable body style in this region — median of what those models actually ask.

Market by model year

Gen 1 · 2015–2024

What each model year costs right now — live supply, median asking price and how much value each year keeps versus the newest one.

Year	Units for sale	Median price	vs newest	Avg mileage
2024	13	$45,100	100%	23,247 mi
2023	67	$42,990	95%	31,789 mi
2022	35	$37,689	84%	44,668 mi
2021	41	$35,300	78%	52,631 mi
2020	25	$30,625	68%	59,515 mi
2019	90	$29,998	67%	68,961 mi
2018	70	$23,881	53%	81,946 mi
2016	15	$19,491	43%	94,758 mi