| Model Year | 2006 | 2016 | |
| Model | Kia Optima | Acura ILX | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 106.3 in | 105.1 in | 1.2 in |
| Length | 185.8 in | 181.9 in | 3.9 in |
| Width | 71.5 in | 70.6 in | 0.9 in |
| Height | 55.5 in | 55.6 in | -0.1 in |
| Curb Weight | 3281 lb. | 3093 lb. | 188 lb. |
| Fuel Capacity | 17.2 gal. | 13.2 gal. | 4 gal. |
| Headroom, Row 1 | 39.0 in | 38.0 in | 1 in |
| Shoulder Room, Row 1 | 56.9 in | 55.6 in | 1.3 in |
| Hip Room, Row 1 | 55.8 in | 50.3 in | 5.5 in |
| Legroom, Row 1 | 43.3 in | 42.3 in | 1 in |
| Headroom, Row 2 | 37.6 in | 35.9 in | 1.7 in |
| Shoulder Room, Row 2 | 55.7 in | 53.5 in | 2.2 in |
| Hip Room, Row 2 | 54.4 in | 51.7 in | 2.7 in |
| Legroom, Row 2 | 36.2 in | 34.0 in | 2.2 in |
| Total Legroom | 79.5 in (over 2 rows) | 76.3 in (over 2 rows) | 3.2 in |
| Cargo Volume | 13.6 ft3 | 12.3 ft3 | 1.3 ft3 |
| 2006 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 ILX.