| Model Year | 2008 | 2016 | |
| Model | Kia Optima | Acura RDX | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 107.1 in | 105.7 in | 1.4 in |
| Length | 186.4 in | 184.4 in | 2 in |
| Width | 71.1 in | 73.7 in | -2.6 in |
| Height | 58.3 in | 65.0 in | -6.7 in |
| Curb Weight | 3142 lb. | 3737 lb. | -595 lb. |
| Fuel Capacity | 17.0 gal. | 16.0 gal. | 1 gal. |
| Headroom, Row 1 | 39.8 in | 38.7 in | 1.1 in |
| Shoulder Room, Row 1 | 57.1 in | 58.7 in | -1.6 in |
| Hip Room, Row 1 | 54.5 in | 55.7 in | -1.2 in |
| Legroom, Row 1 | 43.7 in | 42.0 in | 1.7 in |
| Headroom, Row 2 | 38.0 in | 38.1 in | -0.1 in |
| Shoulder Room, Row 2 | 56.3 in | 57.2 in | -0.9 in |
| Hip Room, Row 2 | 54.7 in | 53.8 in | 0.9 in |
| Legroom, Row 2 | 37.8 in | 38.3 in | -0.5 in |
| Total Legroom | 81.5 in (over 2 rows) | 80.3 in (over 2 rows) | 1.2 in |
| Cargo Volume, Minimum | 14.8 ft3 | 26.1 ft3 | -11.3 ft3 |
| Cargo Volume, Maximum | 14.8 ft3 | 61.3 ft3 | -46.5 ft3 |
| 2008 Kia Optima Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2007 | 4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD |
Spacious enough to allow my 84 year old mother to get in and out without injuring herself! see full Kia Optima review |
| 2007 | 4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD |
After driving the Optima for five days straight for 10+ hours per day, other than the occasional stop, on a road trip, not one time did I get a sore back or thighs. see full Kia Optima review |
None of our members have yet commented on the seat room and comfort of the 2016 Acura RDX.