| Model Year | 2014 | 2008 | |
| Model | Mercedes-Benz SLS AMG | Porsche Cayenne | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Coupe | 4dr SUV | |
| Difference | |||
| Wheelbase | 105.5 in | 112.4 in | -6.9 in |
| Length | 182.6 in | 188.9 in | -6.3 in |
| Width | 76.3 in | 76.0 in | 0.3 in |
| Height | 49.3 in | 66.9 in | -17.6 in |
| Curb Weight | 3726 lb. | 4762 lb. | -1036 lb. |
| Fuel Capacity | 22.5 gal. | 26.4 gal. | -3.9 gal. |
| Headroom, Row 1 | 39.0 in | 39.7 in | -0.7 in |
| Shoulder Room, Row 1 | 58.4 in | 58.5 in | -0.1 in |
| Hip Room, Row 1 | 63.2 in | 57.4 in | 5.8 in |
| Legroom, Row 1 | 41.7 in | 40.6 in | 1.1 in |
| Headroom, Row 2 | 0.0 in | 38.9 in | -38.9 in |
| Shoulder Room, Row 2 | 0.0 in | 56.7 in | -56.7 in |
| Hip Room, Row 2 | 0.0 in | 53.3 in | -53.3 in |
| Legroom, Row 2 | 0.0 in | 36.0 in | -36 in |
| Total Legroom | 41.7 in (over 1 rows) | 76.6 in (over 2 rows) | -34.9 in |
| Cargo Volume, Minimum | 6.2 ft3 | 19.1 ft3 | -12.9 ft3 |
| Cargo Volume, Maximum | 6.2 ft3 | 62.5 ft3 | -56.3 ft3 |
None of our members have yet commented on the seat room and comfort of the 2014 Mercedes-Benz SLS AMG.
None of our members have yet commented on the seat room and comfort of the 2008 Porsche Cayenne.