2021 BMW M340i: trims, real prices & how to pick yours
4 builds left the factory as a 2021 M340i, each a different combination of engine, transmission and body identified by the first eight characters of its VIN. The 4 main configurations sell for $2,021–$62,470 today.
- 4 main configurations
- 4,719 vehicles built
- 86 for sale right now
- $2,021–$62,470 typical price range
Which M340i 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 M340i
-
Most common — 42% of 2021 M340is
M340i RWD 3MW5U7J0-M3L 6-cyl, 382 hp, Automatic, Rear-wheel drive. 1,997 built.
$2,021 great deal $38,998 typical $44,988 top of market -
xDrive · AWD WBA5U9C0-M3L 6-cyl, 382 hp, Automatic, All-wheel drive. 205 built.
-
I · RWD WBA5U7C0-M3L 6-cyl, 382 hp, Automatic, Rear-wheel drive. 119 built.
What actually differs
| M340i RWD | xDrive · AWD | I · RWD | |
|---|---|---|---|
| Drivetrain | Rear-wheel drive | All-wheel drive | Rear-wheel drive |
| Typical price today | $38,998 | — | $39,206 |
| For sale right now | 35 | 1 | 3 |
| Vehicles built | 1,997 | 205 | 119 |
Same on every 2021 M340i
- Engine 3L 6-cyl
- Power 382 hp
- Transmission Automatic
- Fuel Gasoline
- Body Sedan
- Seats 5
- Doors 4-door
What people actually pay
116 price observations · updated Aug 30, 2026
M340i RWD
$38,998
$1,960
$13,055
$24,149
$35,244
$46,338
Safety, in plain English
Driver assistance — every 2021 M340i
- ✓ Warns you before a crash
- ✓ Brakes for you in an emergency
- ✓ Watches your blind spot (optional)
- ✓ Warns when you drift from your lane
- ✓ Steers you back into the lane (optional)
- ✓ Keeps distance on the highway (optional)
What 3MW5U7J0-M means
3MW
5U7J0
·
M
- 3MW
- the World Manufacturer Identifier BMW registered — assembled in Mexico
- 5U7J0
- together encode the M340i line — Sedan, 3L 6cyl, 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
Real VINs from this run
3MW5U7J0
4M8B65107
Already looking at a specific M340i?
Paste its VIN — we’ll open that exact car’s page: its configuration, market position and every listing we’ve tracked.