| Model Year | 2006 | 2009 | |
| Model | Kia Optima | Acura RDX | |
| Engine | 2.7L V6 DOHC-4v 170 hp@6000 181 lb-ft@4000 |
turbocharged 2.3L I4 DOHC-4v 240 hp@6000 260 lb-ft@4500 |
|
| Transmission | 4-speed shiftable automatic | 5-speed shiftable automatic | |
| Drivetrain | FWD | AWD | |
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 106.3 in | 104.3 in | 2 in |
| Length | 185.8 in | 180.7 in | 5.1 in |
| Width | 71.5 in | 73.6 in | -2.1 in |
| Height | 55.5 in | 65.2 in | -9.7 in |
| Curb Weight | 3279 lb. | 3968 lb. | -689 lb. |
| Fuel Capacity | 17.2 gal. | 18.0 gal. | -0.8 gal. |
| Headroom, Row 1 | 39.0 in | 38.7 in | 0.3 in |
| Shoulder Room, Row 1 | 56.9 in | 58.2 in | -1.3 in |
| Hip Room, Row 1 | 55.8 in | 54.4 in | 1.4 in |
| Legroom, Row 1 | 43.3 in | 41.8 in | 1.5 in |
| Headroom, Row 2 | 37.6 in | 38.3 in | -0.7 in |
| Shoulder Room, Row 2 | 55.7 in | 56.3 in | -0.6 in |
| Hip Room, Row 2 | 54.4 in | 53.0 in | 1.4 in |
| Legroom, Row 2 | 36.2 in | 37.6 in | -1.4 in |
| Total Legroom | 79.5 in (over 2 rows) | 79.4 in (over 2 rows) | 0.1 in |
| Cargo Volume, Minimum | 13.6 ft3 | 27.8 ft3 | -14.2 ft3 |
| Cargo Volume, Maximum | 13.6 ft3 | 60.6 ft3 | -47 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 |
| 2009 Acura RDX Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2010 | 4dr SUV turbocharged 240hp 2.3L I4 5-speed shiftable automatic AWD |
back support is excellent see full Acura RDX review |
| 2010 | 4dr SUV turbocharged 240hp 2.3L I4 5-speed shiftable automatic AWD |
For, supportive, yet easy to find a comfortable position. see full Acura RDX review |
| 2008 | 4dr SUV turbocharged 240hp 2.3L I4 5-speed shiftable automatic AWD |
Keeps me alert see full Acura RDX review |
| 2009 Acura RDX Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV turbocharged 240hp 2.3L I4 5-speed shiftable automatic AWD |
passenger seat is manual?!!??? how cheap can you get here see full Acura RDX review |