BMW 640i vs Mercedes-Benz SLK55 AMG
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2016 Mercedes-Benz SLK55 AMG
Overview
| Spec | BMW 640i640i | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Selected trim | 640i | AMG SLK 55 |
| Body style | Convertible | Convertible |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 7-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2018 | 2016 |
Pricing & market
| Spec | BMW 640i640i | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| MSRP | $86,700 | $72,600 (best) |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | BMW 640i640i | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Combined MPG | 23 MPG (best) | 22 MPG |
| City MPG | 20 MPG (best) | 19 MPG |
| Highway MPG | 29 MPG (best) | 28 MPG |
| Fuel tank | 18.5 gal | 18.5 gal |
Performance
| Spec | BMW 640i640i | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Horsepower | 315 hp | 416 hp (best) |
| Torque | 330 lb-ft | 398 lb-ft (best) |
| Engine size | 3 L | 5.5 L (best) |
| Cylinders | I6 | V8 |
Size & capability
| Spec | BMW 640i640i | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Seating | 4 seats (best) | 2 seats |
| Doors | 2 | 2 |
| Cargo volume | 11 cu ft (best) | 10.1 cu ft |
| Curb weight | 4,250 lbs (best) | — |
| Ground clearance | 4.8 in (best) | — |
| Wheelbase | 112.4 in (best) | 95.7 in |
| Length | 192.8 in (best) | 163.2 in |
| Width | 74.6 in (best) | 71.5 in |
| Height | 53.7 in (best) | 51.2 in |
Safety & recalls
| Spec | BMW 640i640i | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Open recalls (YMM scope) | 2 | 1 (best) |
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 640i | Mercedes-Benz SLK55 AMG |
|---|---|---|
| 1 | 640i $86,700 MSRP(Currently comparing) | AMG SLK 55 $72,600 MSRP(Currently comparing) |
BMW 640i vs Mercedes-Benz SLK55 AMG FAQ
- Which is better: 2018 BMW 640i or 2016 Mercedes-Benz SLK55 AMG?
- It depends on priorities. OpenDealer compares 2018 BMW 640i vs 2016 Mercedes-Benz SLK55 AMG on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2018 BMW 640i or 2016 Mercedes-Benz SLK55 AMG?
- Based on starting MSRP, the 2016 Mercedes-Benz SLK55 AMG starts lower at $72,600.
- Which has better startingMsrp: 2018 BMW 640i or 2016 Mercedes-Benz SLK55 AMG?
- The 2016 Mercedes-Benz SLK55 AMG leads on startingMsrp in this comparison (72,600).
- Which has better combinedMpg: 2018 BMW 640i or 2016 Mercedes-Benz SLK55 AMG?
- The 2018 BMW 640i leads on combinedMpg in this comparison (23).
- Which has better horsepower: 2018 BMW 640i or 2016 Mercedes-Benz SLK55 AMG?
- The 2016 Mercedes-Benz SLK55 AMG leads on horsepower in this comparison (416).
- Which has better seats: 2018 BMW 640i or 2016 Mercedes-Benz SLK55 AMG?
- The 2018 BMW 640i leads on seats in this comparison (4).