| Model Year | 2015 | 2010 | |
| Model | Audi A8 / S8 | Pontiac G6 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 117.8 in | 112.3 in | 5.5 in |
| Length | 202.2 in | 189.1 in | 13.1 in |
| Width | 76.7 in | 70.6 in | 6.1 in |
| Height | 57.5 in | 57.0 in | 0.5 in |
| Curb Weight | 4365 lb. | 3457 lb. | 908 lb. |
| Fuel Capacity | 21.7 gal. | 16.4 gal. | 5.3 gal. |
| Headroom, Row 1 | 37.2 in | 39.0 in | -1.8 in |
| Shoulder Room, Row 1 | 59.1 in | 55.4 in | 3.7 in |
| Hip Room, Row 1 | 0.0 in | 52.7 in | -52.7 in |
| Legroom, Row 1 | 41.4 in | 42.2 in | -0.8 in |
| Headroom, Row 2 | 38.1 in | 36.5 in | 1.6 in |
| Shoulder Room, Row 2 | 57.8 in | 55.4 in | 2.4 in |
| Hip Room, Row 2 | 0.0 in | 51.9 in | -51.9 in |
| Legroom, Row 2 | 38.7 in | 37.6 in | 1.1 in |
| Total Legroom | 80.1 in (over 2 rows) | 79.8 in (over 2 rows) | 0.3 in |
| Cargo Volume | 14.2 ft3 | 14.0 ft3 | 0.2 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 Audi A8 / S8.
| 2010 Pontiac G6 Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2009 | 4dr Sedan 219-horsepower 3.5L V6 4-speed automatic FWD |
Extremely uncomfortable driver seat. This was the base model with cloth manual seats. They are too hard . see full Pontiac G6 review |