| Model Year | 2018 | 2009 | |
| Model | Lexus IS | Lexus RX | |
| Engine | 3.5L V6 DOHC-4v 190 kW@6400 320 Nm@2000 |
3.5L V6 DOHC-4v 201 kW@6200 340 Nm@4700 |
|
| Transmission | 6-speed shiftable automatic | 5-speed automatic | |
| Drivetrain | AWD | AWD | |
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 2,799 mm | 2,715 mm | 0 mm |
| Length | 4,681 mm | 4,729 mm | 0 mm |
| Width | 1,811 mm | 1,844 mm | 0 mm |
| Height | 1,430 mm | 1,679 mm | 0 mm |
| Curb Weight | 1,695 kg | 1,855 kg | 0 kg |
| Fuel Capacity | 66 L | 73 L | -7 L |
| Headroom, Row 1 | 970 mm | 1,001 mm | 969 mm |
| Shoulder Room, Row 1 | 1,420 mm | 1,471 mm | 0 mm |
| Hip Room, Row 1 | 1,379 mm | 1,412 mm | 0 mm |
| Legroom, Row 1 | 1,138 mm | 1,080 mm | 0 mm |
| Headroom, Row 2 | 937 mm | 980 mm | -43 mm |
| Shoulder Room, Row 2 | 1,356 mm | 1,450 mm | 0 mm |
| Hip Room, Row 2 | 1,372 mm | 1,400 mm | 0 mm |
| Legroom, Row 2 | 818 mm | 925 mm | -107 mm |
| Total Legroom | 1,956 mm (over 2 rows) | 2,004 mm (over 2 rows) | -1 mm |
| Cargo Volume, Minimum | 306 L | 1,085 L | 305 L |
| Cargo Volume, Maximum | 10.8 | 2,398 L | 8.8 |
None of our members have yet commented on the seat room and comfort of the 2018 Lexus IS.
| 2009 Lexus RX Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2009 | 4dr SUV 270-horsepower 3.5L V6 5-speed automatic AWD |
rear seating and space is grand. front cockpit is a bit short and chopped but acceptable. Front seats are not as comfortable as in our 2001 RX 300. The front seats are minimally acceptable. see full Lexus RX review |