| Model Year | 2008 | 2025 | |
| Model | Pontiac Grand Prix | Honda Odyssey | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Minivan, ext. | |
| Difference | |||
| Wheelbase | 110.5 in | 118.1 in | -7.6 in |
| Length | 198.3 in | 205.2 in | -6.9 in |
| Width | 71.6 in | 78.5 in | -6.9 in |
| Height | 55.9 in | 69.6 in | -13.7 in |
| Curb Weight | 3477 lb. | 4526 lb. | -1049 lb. |
| Fuel Capacity | 17.0 gal. | 19.5 gal. | -2.5 gal. |
| Headroom, Row 1 | 38.8 in | 38.7 in | 0.1 in |
| Shoulder Room, Row 1 | 58.0 in | 63.1 in | -5.1 in |
| Hip Room, Row 1 | 54.5 in | 58.6 in | -4.1 in |
| Legroom, Row 1 | 42.2 in | 40.9 in | 1.3 in |
| Headroom, Row 2 | 36.2 in | 39.2 in | -3 in |
| Shoulder Room, Row 2 | 54.8 in | 61.6 in | -6.8 in |
| Hip Room, Row 2 | 54.3 in | 64.8 in | -10.5 in |
| Legroom, Row 2 | 36.2 in | 40.9 in | -4.7 in |
| Headroom, Row 3 | 0.0 in | 38.3 in | -38.3 in |
| Shoulder Room, Row 3 | 0.0 in | 60.0 in | -60 in |
| Hip Room, Row 3 | 0.0 in | 48.4 in | -48.4 in |
| Legroom, Row 3 | 0.0 in | 38.1 in | -38.1 in |
| Total Legroom | 78.4 in (over 2 rows) | 119.9 in (over 3 rows) | -41.5 in |
| Cargo Volume, Minimum | 16.0 ft3 | 32.8 ft3 | -16.8 ft3 |
| Cargo Volume, Behind R2 | 16.0 | 86.6 ft3 | -70.6 |
| Cargo Volume, Maximum | 16.0 ft3 | 140.7 ft3 | -124.7 ft3 |
| 2008 Pontiac Grand Prix Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD |
Front of the GXP is great - heated leather seats, plenty of seat adjustments, and the controls are all pointed at the driver. Even on a 20 hour trip, I had no issues with discomfort. see full Pontiac Grand Prix review |
| 2007 | 4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD |
Front seats are nicely bolstered and are adjustable in every aspect. see full Pontiac Grand Prix review |
| 2007 | 4dr Sedan supercharged 260hp 3.8L V6 4-speed automatic FWD |
The seats support completely without the need to squirm around on ling trips see full Pontiac Grand Prix review |
| 2008 Pontiac Grand Prix Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2007 | 4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD |
Seats sit too low and are too hard. see full Pontiac Grand Prix review |
None of our members have yet commented on the seat room and comfort of the 2025 Honda Odyssey.