BMW 840i vs Mercedes-Benz C63 AMG S E Performance
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz C63 AMG S E Performance
Overview
| Spec | BMW 840i840i | Mercedes-Benz C63 AMG S E PerformanceAMG C 63 S E PERFORMANCE |
|---|---|---|
| Selected trim | 840i | AMG C 63 S E PERFORMANCE |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | all wheel drive |
| Fuel type | premium unleaded (recommended) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | gas | plug-in hybrid |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | BMW 840i840i | Mercedes-Benz C63 AMG S E PerformanceAMG C 63 S E PERFORMANCE |
|---|---|---|
| MSRP | $90,800 | $88,000 (best) |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | BMW 840i840i | Mercedes-Benz C63 AMG S E PerformanceAMG C 63 S E PERFORMANCE |
|---|---|---|
| Combined MPG | — | 20 MPG (best) |
| City MPG | — | 19 MPG (best) |
| Highway MPG | — | 22 MPG (best) |
| Combined MPGe | — | 37 MPGe (best) |
| Electric range | — | 1 mi (best) |
| 240V charge time | — | 1.2 hr (best) |
| Fuel tank | 18 gal (best) | 17.4 gal |
Performance
| Spec | BMW 840i840i | Mercedes-Benz C63 AMG S E PerformanceAMG C 63 S E PERFORMANCE |
|---|---|---|
| Horsepower | 335 hp | 671 hp (best) |
| Torque | 369 lb-ft | 752 lb-ft (best) |
| Engine size | 3 L (best) | 2 L |
| Cylinders | I6 | I4 |
Size & capability
| Spec | BMW 840i840i | Mercedes-Benz C63 AMG S E PerformanceAMG C 63 S E PERFORMANCE |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 15.5 cu ft (best) | 11.6 cu ft |
| Payload | 1,003 lbs (best) | — |
| Curb weight | 4,180 lbs (best) | 4,817 lbs |
| Ground clearance | 4.8 in (best) | — |
| Wheelbase | 119 in (best) | 113.1 in |
| Length | 200.3 in (best) | 190.6 in |
| Width | 76.1 in (best) | 74.4 in |
| Height | 55.4 in | 57.4 in (best) |
Safety & recalls
| Spec | BMW 840i840i | Mercedes-Benz C63 AMG S E PerformanceAMG C 63 S E PERFORMANCE |
|---|---|---|
| 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 840i | Mercedes-Benz C63 AMG S E Performance |
|---|---|---|
| 1 | 840i $90,800 MSRP(Currently comparing) | AMG C 63 S E PERFORMANCE $88,000 MSRP(Currently comparing) |
| 2 | 840i $91,700 MSRP | — |
| 3 | 840i $100,500 MSRP | — |