| Model Year | 2010 | 2009 | |
| Model | Porsche Cayenne | Mercedes-Benz SLK | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 2dr Hardtop conv. | |
| Difference | |||
| Wheelbase | 112.4 in | 95.7 in | 16.7 in |
| Length | 188.9 in | 160.7 in | 28.2 in |
| Width | 76.0 in | 70.4 in | 5.6 in |
| Height | 66.9 in | 51.0 in | 15.9 in |
| Curb Weight | 4762 lb. | 3209 lb. | 1553 lb. |
| Fuel Capacity | 26.4 gal. | 18.5 gal. | 7.9 gal. |
| Headroom, Row 1 | 39.7 in | 37.9 in | 1.8 in |
| Shoulder Room, Row 1 | 58.5 in | 52.2 in | 6.3 in |
| Hip Room, Row 1 | 57.4 in | 54.6 in | 2.8 in |
| Legroom, Row 1 | 40.6 in | 42.5 in | -1.9 in |
| Headroom, Row 2 | 38.9 in | 0.0 in | 38.9 in |
| Shoulder Room, Row 2 | 56.7 in | 0.0 in | 56.7 in |
| Hip Room, Row 2 | 53.3 in | 0.0 in | 53.3 in |
| Legroom, Row 2 | 36.0 in | 0.0 in | 36 in |
| Total Legroom | 76.6 in (over 2 rows) | 42.5 in (over 1 rows) | 34.1 in |
| Cargo Volume, Minimum | 19.1 ft3 | 6.5 ft3 | 12.6 ft3 |
| Cargo Volume, Maximum | 62.5 ft3 | 9.8 ft3 | 52.7 ft3 |
None of our members have yet commented on the seat room and comfort of the 2010 Porsche Cayenne.
None of our members have yet commented on the seat room and comfort of the 2009 Mercedes-Benz SLK.