| Model Year | 2009 | 2010 | |
| Model | Kia Optima | Acura RL | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 107.1 in | 110.2 in | -3.1 in |
| Length | 189.0 in | 195.8 in | -6.8 in |
| Width | 71.1 in | 72.7 in | -1.6 in |
| Height | 58.3 in | 57.2 in | 1.1 in |
| Curb Weight | 3157 lb. | 4083 lb. | -926 lb. |
| Fuel Capacity | 16.4 gal. | 19.4 gal. | -3 gal. |
| Headroom, Row 1 | 39.8 in | 38.5 in | 1.3 in |
| Shoulder Room, Row 1 | 57.1 in | 58.5 in | -1.4 in |
| Hip Room, Row 1 | 54.5 in | 55.1 in | -0.6 in |
| Legroom, Row 1 | 43.7 in | 42.4 in | 1.3 in |
| Headroom, Row 2 | 38.0 in | 37.2 in | 0.8 in |
| Shoulder Room, Row 2 | 56.3 in | 56.1 in | 0.2 in |
| Hip Room, Row 2 | 54.7 in | 54.0 in | 0.7 in |
| Legroom, Row 2 | 37.8 in | 36.3 in | 1.5 in |
| Total Legroom | 81.5 in (over 2 rows) | 78.7 in (over 2 rows) | 2.8 in |
| Cargo Volume | 15.0 ft3 | 13.1 ft3 | 1.9 ft3 |
None of our members have yet commented on the seat room and comfort of the 2009 Kia Optima.
None of our members have yet commented on the seat room and comfort of the 2010 Acura RL.