| Model Year | 2020 | 2007 | |
| Model | Buick Regal | Kia Optima | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Hatch | 4dr Sedan | |
| Difference | |||
| Wheelbase | 111.4 in | 107.1 in | 4.3 in |
| Length | 192.9 in | 186.4 in | 6.5 in |
| Width | 73.3 in | 71.1 in | 2.2 in |
| Height | 57.3 in | 58.3 in | -1 in |
| Curb Weight | 4081 lb. | 3142 lb. | 939 lb. |
| Fuel Capacity | 16.3 gal. | 17.0 gal. | -0.7 gal. |
| Headroom, Row 1 | 38.8 in | 39.8 in | -1 in |
| Shoulder Room, Row 1 | 56.9 in | 57.1 in | -0.2 in |
| Hip Room, Row 1 | 55.2 in | 54.5 in | 0.7 in |
| Legroom, Row 1 | 42.1 in | 43.7 in | -1.6 in |
| Headroom, Row 2 | 37.4 in | 38.0 in | -0.6 in |
| Shoulder Room, Row 2 | 55.4 in | 56.3 in | -0.9 in |
| Hip Room, Row 2 | 54.1 in | 54.7 in | -0.6 in |
| Legroom, Row 2 | 36.9 in | 37.8 in | -0.9 in |
| Total Legroom | 79 in (over 2 rows) | 81.5 in (over 2 rows) | -2.5 in |
| Cargo Volume, Minimum | 31.5 ft3 | 14.8 ft3 | 16.7 ft3 |
| Cargo Volume, Maximum | 60.7 ft3 | 14.8 ft3 | 45.9 ft3 |
None of our members have yet commented on the seat room and comfort of the 2020 Buick Regal.
| 2007 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 |