BMW Alpina B6 xDrive Gran Coupe vs Mercedes-Benz S550
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2017 Mercedes-Benz S550
Overview
| Spec | BMW Alpina B6 xDrive Gran CoupexDrive | Mercedes-Benz S550S 550 |
|---|---|---|
| Selected trim | xDrive | S 550 |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | rear wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2019 | 2017 |
Pricing & market
| Spec | BMW Alpina B6 xDrive Gran CoupexDrive | Mercedes-Benz S550S 550 |
|---|---|---|
| MSRP | $124,400 | $96,600 (best) |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | BMW Alpina B6 xDrive Gran CoupexDrive | Mercedes-Benz S550S 550 |
|---|---|---|
| Combined MPG | 20 MPG | 21 MPG (best) |
| City MPG | 17 MPG | 18 MPG (best) |
| Highway MPG | 25 MPG | 26 MPG (best) |
| Fuel tank | 18.5 gal | 23 gal (best) |
Performance
| Spec | BMW Alpina B6 xDrive Gran CoupexDrive | Mercedes-Benz S550S 550 |
|---|---|---|
| Horsepower | 591 hp (best) | 449 hp |
| Torque | 590 lb-ft (best) | 516 lb-ft |
| Engine size | 4.4 L | 4.7 L (best) |
| Cylinders | V8 | V8 |
Size & capability
| Spec | BMW Alpina B6 xDrive Gran CoupexDrive | Mercedes-Benz S550S 550 |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 13 cu ft | 16.3 cu ft (best) |
| Curb weight | 4,780 lbs | 4,663 lbs (best) |
| Ground clearance | 4.3 in (best) | — |
| Wheelbase | 116.9 in | 124.6 in (best) |
| Length | 197.1 in | 206.5 in (best) |
| Width | 74.6 in (best) | — |
| Height | 55 in | 58.7 in (best) |
Safety & recalls
| Spec | BMW Alpina B6 xDrive Gran CoupexDrive | Mercedes-Benz S550S 550 |
|---|---|---|
| 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 Alpina B6 xDrive Gran Coupe | Mercedes-Benz S550 |
|---|---|---|
| 1 | xDrive $124,400 MSRP(Currently comparing) | S 550 $96,600 MSRP(Currently comparing) |
| 2 | — | S 550 $131,400 MSRP |
| 3 | — | S 550 4MATIC $99,600 MSRP |
| 4 | — | S 550 4MATIC $122,750 MSRP |
| 5 | — | AMG S 63 4MATIC $164,750 MSRP |