BMW M340i vs Mercedes-Benz C43 AMG
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz C43 AMG
Overview
| Spec | BMW M340iM340i | Mercedes-Benz C43 AMGAMG C 43 |
|---|---|---|
| Selected trim | M340i | AMG C 43 |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | mild hybrid | mild hybrid |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | BMW M340iM340i | Mercedes-Benz C43 AMGAMG C 43 |
|---|---|---|
| MSRP | $61,700 (best) | $64,150 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | BMW M340iM340i | Mercedes-Benz C43 AMGAMG C 43 |
|---|---|---|
| Combined MPG | 29 MPG (best) | 22 MPG |
| City MPG | 27 MPG (best) | 19 MPG |
| Highway MPG | 33 MPG (best) | 27 MPG |
| Fuel tank | 15.6 gal | 17.4 gal (best) |
Performance
| Spec | BMW M340iM340i | Mercedes-Benz C43 AMGAMG C 43 |
|---|---|---|
| Horsepower | 386 hp | 416 hp (best) |
| Torque | 398 lb-ft (best) | 369 lb-ft |
| Engine size | 3 L (best) | 2 L |
| Cylinders | I6 | I4 |
Size & capability
| Spec | BMW M340iM340i | Mercedes-Benz C43 AMGAMG C 43 |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 16.9 cu ft (best) | 11.6 cu ft |
| Curb weight | 3,896 lbs (best) | 4,165 lbs |
| Ground clearance | 5.3 in (best) | — |
| Wheelbase | 112.2 in | 112.8 in (best) |
| Length | 185.9 in | 188.6 in (best) |
| Width | 71.9 in | 74.4 in (best) |
| Height | 56.4 in | 57.1 in (best) |
Safety & recalls
| Spec | BMW M340iM340i | Mercedes-Benz C43 AMGAMG C 43 |
|---|---|---|
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | BMW M340i | Mercedes-Benz C43 AMG |
|---|---|---|
| 1 | M340i $61,700 MSRP(Currently comparing) | AMG C 43 $64,150 MSRP(Currently comparing) |