This vehicle is no longer listed, so the estimate starts from $35,611 — 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

$635

per month

60 months · 7.0% APR · $3,561 down

Amount financed

$32,050

Total interest

$6,050

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 WAUA4AF45MA025675

Trim

Quattro Premium

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 $12,530

Fuel $10,100

Insurance $9,050

Maintenance & repairs $5,625

Total, 5 years $37,305

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 $897 in that span.

Mar Apr May Jun Jul Aug

Monthly price table

Month	Typical price
March 2026	$35,995
April 2026	$35,998
May 2026	$35,392
June 2026	$35,990
July 2026	$35,495
August 2026	$35,098

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 Premium (this car)	$35,611	8	—
2023 Nissan Altima	$19,494	30	−$16,117
2023 Hyundai Elantra	$20,166	30	−$15,445
2023 Honda Accord	$24,999	29	−$10,612
2023 Kia Forte	$17,998	24	−$17,613
2020 Toyota Corolla	$19,297	15	−$16,314

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%	23,246 mi
2023	70	$42,994	95%	31,674 mi
2022	38	$37,794	84%	41,829 mi
2021	36	$34,428	76%	54,815 mi
2020	23	$29,977	66%	66,883 mi
2019	73	$29,577	66%	70,740 mi
2018	75	$24,045	53%	80,449 mi
2015	27	$16,995	38%	109,881 mi