| Model Year | 2015 | 2020 | |
| Model | Porsche Cayman | Mercedes-Benz SL | |
| Engine | 3.4L H6 DOHC-4v 325 hp@7400 273 lb-ft@4500 |
turbocharged 4.7L V8 DOHC-4v 449 hp@5250 516 lb-ft@1800 |
|
| Transmission | 7-speed automated manual | 9-speed shiftable automatic | |
| Drivetrain | RWD | RWD | |
| Body | 2dr Hatch | 2dr Hardtop conv. | |
| Difference | |||
| Wheelbase | 97.4 in | 101.7 in | -4.3 in |
| Length | 172.4 in | 182.3 in | -9.9 in |
| Width | 70.9 in | 73.9 in | -3 in |
| Height | 50.9 in | 51.2 in | -0.3 in |
| Curb Weight | 2976 lb. | 3959 lb. | -983 lb. |
| Fuel Capacity | 16.9 gal. | 19.8 gal. | -2.9 gal. |
| Headroom, Row 1 | 0.0 in | 39.1 in | -39.1 in |
| Shoulder Room, Row 1 | 0.0 in | 55.5 in | -55.5 in |
| Legroom, Row 1 | 0.0 in | 42.9 in | -42.9 in |
| Total Legroom | 0 in (over 1 rows) | 42.9 in (over 1 rows) | -42.9 in |
| Cargo Volume, Minimum | 15.0 ft3 | 8.5 ft3 | 6.5 ft3 |
| Cargo Volume, Maximum | 15.0 ft3 | 13.5 ft3 | 1.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 Porsche Cayman.
None of our members have yet commented on the seat room and comfort of the 2020 Mercedes-Benz SL.