BMW 640i vs Porsche Cayman
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2016 Porsche Cayman
Overview
| Spec | BMW 640i640i | Porsche CaymanBase |
|---|---|---|
| Selected trim | 640i | Base |
| Body style | Convertible | Coupe |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 6-speed manual |
| Engine type | gas | gas |
| Model year | 2018 | 2016 |
Pricing & market
| Spec | BMW 640i640i | Porsche CaymanBase |
|---|---|---|
| MSRP | $86,700 | $52,600 (best) |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | BMW 640i640i | Porsche CaymanBase |
|---|---|---|
| Combined MPG | 23 MPG | 24 MPG (best) |
| City MPG | 20 MPG | 20 MPG |
| Highway MPG | 29 MPG | 30 MPG (best) |
| Fuel tank | 18.5 gal (best) | 16.9 gal |
Performance
| Spec | BMW 640i640i | Porsche CaymanBase |
|---|---|---|
| Horsepower | 315 hp (best) | 275 hp |
| Torque | 330 lb-ft (best) | 214 lb-ft |
| Engine size | 3 L (best) | 2.7 L |
| Cylinders | I6 | flat 6 |
Size & capability
| Spec | BMW 640i640i | Porsche CaymanBase |
|---|---|---|
| Seating | 4 seats (best) | 2 seats |
| Doors | 2 | 2 |
| Cargo volume | 11 cu ft | 15 cu ft (best) |
| Payload | — | 761 lbs (best) |
| Curb weight | 4,250 lbs | 2,888 lbs (best) |
| Ground clearance | 4.8 in (best) | — |
| Wheelbase | 112.4 in (best) | 97.4 in |
| Length | 192.8 in (best) | 172.4 in |
| Width | 74.6 in (best) | 70.9 in |
| Height | 53.7 in (best) | 50.9 in |
Safety & recalls
| Spec | BMW 640i640i | Porsche CaymanBase |
|---|---|---|
| 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 640i | Porsche Cayman |
|---|---|---|
| 1 | 640i $86,700 MSRP(Currently comparing) | Base $52,600 MSRP(Currently comparing) |
| 2 | — | S $64,100 MSRP |
| 3 | — | GTS $75,200 MSRP |
| 4 | — | GT4 $84,600 MSRP |