| Model Year | 2011 | 2012 | |
| Model | Lexus IS | Ford Flex | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 107.5 in | 117.9 in | -10.4 in |
| Length | 180.1 in | 202.3 in | -22.2 in |
| Width | 70.9 in | 75.9 in | -5 in |
| Height | 56.1 in | 67.6 in | -11.5 in |
| Curb Weight | 3455 lb. | 4471 lb. | -1016 lb. |
| Fuel Capacity | 17.2 gal. | 19.2 gal. | -2 gal. |
| Headroom, Row 1 | 37.2 in | 41.8 in | -4.6 in |
| Shoulder Room, Row 1 | 54.4 in | 58.4 in | -4 in |
| Hip Room, Row 1 | 54.1 in | 55.4 in | -1.3 in |
| Legroom, Row 1 | 43.9 in | 40.8 in | 3.1 in |
| Headroom, Row 2 | 36.7 in | 40.5 in | -3.8 in |
| Shoulder Room, Row 2 | 52.7 in | 57.1 in | -4.4 in |
| Hip Room, Row 2 | 53.7 in | 55.0 in | -1.3 in |
| Legroom, Row 2 | 30.6 in | 44.3 in | -13.7 in |
| Headroom, Row 3 | 0.0 in | 38.7 in | -38.7 in |
| Shoulder Room, Row 3 | 0.0 in | 50.8 in | -50.8 in |
| Hip Room, Row 3 | 0.0 in | 41.1 in | -41.1 in |
| Legroom, Row 3 | 0.0 in | 33.4 in | -33.4 in |
| Total Legroom | 74.5 in (over 2 rows) | 118.5 in (over 3 rows) | -44 in |
| Cargo Volume, Minimum | 13.0 ft3 | 19.4 ft3 | -6.4 ft3 |
| Cargo Volume, Behind R2 | 13.0 | 45.0 ft3 | -32 |
| Cargo Volume, Maximum | 13.0 ft3 | 86.7 ft3 | -73.7 ft3 |
| 2011 Lexus IS Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2010 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD |
Legroom felt narrow for passenger over tranny tunnel. see full Lexus IS review |
| 2010 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD |
Lousey seats: uncomfortable and build is cheap and not conforming to human posture. But, seems last several years most cars have lousey, cheap and uncomfortable seats. see full Lexus IS review |
| 2012 Ford Flex Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2011 | 4dr SUV turbocharged 355hp 3.5L V6 6-speed shiftable automatic AWD |
The seating throughout the vehicle is extremely roomy. Adults can fit comfortably in both the second and third row seats. The driver and passenger seats are also extremely comfortable. see full Ford Flex review |