2021 BMW Z4: trims, real prices & how to pick yours

2 builds left the factory as a 2021 Z4, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 2 main configurations sell for $29,900–$44,356 today.

2 main configurations
942 vehicles built
19 for sale right now
$29,900–$44,356 typical price range

Which Z4 is yours?

Enter a VIN — the 17 characters on the windshield or the title — and we’ll match it to its exact factory configuration, typical price and equipment.

Works with any VIN — a different year or model takes you straight to its own page.

Pick your Z4

Most common — 59% of 2021 Z4s

SDRIVE30I · RWD WBAHF3C0-M

2L 4-cyl, 255 hp, Automatic, Rear-wheel drive. 557 built.

$29,900 great deal $36,698 typical $44,356 top of market

Full specs, prices & VINs → 12 for sale · from $29,900 →
M40i · RWD WBAHF9C0-M

3L 6-cyl, 381 hp, Automatic, Rear-wheel drive. 385 built.

Full specs, prices & VINs → 7 for sale →

What actually differs

	SDRIVE30I · RWD	M40i · RWD
Engine	2L 4-cyl	3L 6-cyl
Power	255 hp	381 hp
Typical price today	$36,698	$50,159
For sale right now	12	7
Vehicles built	557	385

Same on every 2021 Z4

Drivetrain Rear-wheel drive
Transmission Automatic
Fuel Gasoline
Body Convertible
Seats 2
Doors 2-door

What people actually pay

33 price observations · updated Aug 30, 2026

SDRIVE30I · RWD

$36,698

$29,003 $33,174 $37,345 $41,516 $45,687

Price trend

Median down $2,514 over the last 12 months.

2021 Z4 price history →

Will it hold value?

A Z4 typically keeps about 58% of its price over 5 years — a 5-year-old one runs about $23,990 today.

Z4 depreciation by year →

Cost to run

22/30 mpg city/highway. Roughly $1,860/yr on fuel at 15,000 miles.

EPA estimate for the 2021 Z4

Safety, in plain English

Driver assistance — every 2021 Z4

✓ Warns you before a crash
✓ Brakes for you in an emergency
✓ Watches your blind spot (optional)
✓ Warns when you drift from your lane (optional)
✓ Keeps distance on the highway (optional)

Decoded from NHTSA build records.

What WBAHF3C0-M means

WBA HF3C0 · M

WBA: the World Manufacturer Identifier BMW registered — assembled in Germany
HF3C0: together encode the Z4 line — Convertible, 2L 4cyl, Rear-wheel drive — as BMW filed it, these five characters are read as one block, not letter by letter
M: in position 10 — model year 2021
9, 11–17: differ on every car: check digit, plant code and the serial number

Already looking at a specific Z4?

Paste its VIN — we’ll open that exact car’s page: its configuration, market position and every listing we’ve tracked.

2021 BMW Z4 prices →