| Model Year | 2011 | 2007 | |
| Model | Lexus IS | Lexus RX | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 2,731 mm | 2,715 mm | 0 mm |
| Length | 4,575 mm | 4,729 mm | 0 mm |
| Width | 1,801 mm | 1,844 mm | 0 mm |
| Height | 1,425 mm | 1,679 mm | 0 mm |
| Curb Weight | 1,567 kg | 1,755 kg | 0 kg |
| Fuel Capacity | 65 L | 73 L | -8 L |
| Headroom, Row 1 | 945 mm | 1,001 mm | 944 mm |
| Shoulder Room, Row 1 | 1,382 mm | 1,471 mm | 0 mm |
| Hip Room, Row 1 | 1,374 mm | 1,412 mm | 0 mm |
| Legroom, Row 1 | 1,115 mm | 1,080 mm | 0 mm |
| Headroom, Row 2 | 932 mm | 980 mm | -48 mm |
| Shoulder Room, Row 2 | 1,339 mm | 1,450 mm | 0 mm |
| Hip Room, Row 2 | 1,364 mm | 1,400 mm | 0 mm |
| Legroom, Row 2 | 777 mm | 925 mm | -148 mm |
| Total Legroom | 1,892 mm (over 2 rows) | 2,004 mm (over 2 rows) | -1 mm |
| Cargo Volume, Minimum | 368 L | 1,085 L | 367 L |
| Cargo Volume, Maximum | 13.0 | 2,398 L | 11 |
| 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 |
None of our members have yet commented on the seat room and comfort of the 2007 Lexus RX.