| Model Year | 2006 | 2011 | |
| Model | Porsche Cayman | Chevrolet Avalanche | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Hatch | 4dr SUT | |
| Difference | |||
| Wheelbase | 95.1 in | 130.0 in | -34.9 in |
| Length | 170.9 in | 221.3 in | -50.4 in |
| Width | 70.9 in | 79.1 in | -8.2 in |
| Height | 51.4 in | 76.6 in | -25.2 in |
| Curb Weight | 2965 lb. | 5840 lb. | -2875 lb. |
| Fuel Capacity | 17.0 gal. | 31.0 gal. | -14 gal. |
| Headroom, Row 1 | 0.0 in | 41.1 in | -41.1 in |
| Shoulder Room, Row 1 | 0.0 in | 65.3 in | -65.3 in |
| Hip Room, Row 1 | 0.0 in | 64.4 in | -64.4 in |
| Legroom, Row 1 | 0.0 in | 41.3 in | -41.3 in |
| Headroom, Row 2 | 0.0 in | 40.0 in | -40 in |
| Shoulder Room, Row 2 | 0.0 in | 65.2 in | -65.2 in |
| Hip Room, Row 2 | 0.0 in | 62.3 in | -62.3 in |
| Legroom, Row 2 | 0.0 in | 39.1 in | -39.1 in |
| Total Legroom | 0 in (over 1 rows) | 80.4 in (over 2 rows) | -80.4 in |
| Cargo Volume, Minimum | 14.5 ft3 | 45.5 ft3 | -31 ft3 |
| Cargo Volume, Maximum | 14.5 ft3 | 101.1 ft3 | -86.6 ft3 |
| 2006 Porsche Cayman Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2006 | 2dr Hatch 295-horsepower 3.4L H6 6-speed manual RWD |
:) There is none. see full Porsche Cayman review |
None of our members have yet commented on the seat room and comfort of the 2011 Chevrolet Avalanche.