This vehicle is no longer listed, so the estimate starts from $46,147 — 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

$822

per month

60 months · 7.0% APR · $4,615 down

Amount financed

$41,532

Total interest

$7,788

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 WBAHF9C09MWX36789

Trim

M40I

Engine

3.0L · V6

Horsepower

381

Drivetrain

RWD/Rear-Wheel Drive

Transmission

Automatic

Body

Convertible/Cabriolet

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

$1,860 /yr est. fuel

Assumes 15,000 miles a year at $3.10/gallon and 25 MPG combined.

5-year cost to own

Beyond the sticker: what this 2021 BMW Z4 likely costs over five years at 15,000 mi/yr.

Depreciation $16,237

Fuel $9,300

Insurance $8,000

Maintenance & repairs $5,625

Total, 5 years $39,162

Estimate — insurance and taxes vary by driver and state.

Safety & recalls

NHTSA crash tests & recall campaigns for this model year

The 2021 BMW Z4 has 5 recall campaigns as of August 2026. EPA combined fuel economy: 25 MPG.

5 recall campaigns on this model year

Check accident & title history →

SEAT BELTS

BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive)…

NHTSA campaign 21V554000
FUEL SYSTEM, GASOLINE

BMW of North America, LLC (BMW) is recalling certain 2020-2021 Z4 and 2020-2021 Toyota Supra vehicles.

NHTSA campaign 20V700000
ENGINE

BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021…

NHTSA campaign 21V598000

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 BMW Z4 from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed August 27, 2026.

Where the price is heading

Typical asking price for a 2021 BMW Z4 over the last 6 months — the market firmed $4,392 in that span.

Apr May Jun Jul Aug Sep

Monthly price table

Month	Typical price
April 2026	$39,998
May 2026	$38,616
June 2026	$39,846
July 2026	$40,993
August 2026	$42,842
September 2026	$44,390

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 BMW Z4 M40i (this car)	$46,147	48	—
2020 Mazda MX-5	$25,068	2	−$21,079

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

Market by model year

Gen 1 · 2003–present

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
2026	106	$64,892	100%	5,424 mi
2025	33	$50,481	78%	14,421 mi
2024	27	$57,990	89%	16,666 mi
2023	37	$46,975	72%	19,611 mi
2022	37	$44,484	69%	25,860 mi
2021	23	$41,590	64%	24,518 mi
2020	68	$36,378	56%	45,114 mi
2019	28	$32,151	50%	42,847 mi