| Model Year | 2010 | 2009 | |
| Model | Audi A4 / S4 | Lexus RX | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Wagon | 4dr SUV | |
| Difference | |||
| Wheelbase | 110.6 in | 106.9 in | 3.7 in |
| Length | 185.2 in | 186.2 in | -1 in |
| Width | 71.9 in | 72.6 in | -0.7 in |
| Height | 56.5 in | 66.1 in | -9.6 in |
| Curb Weight | 3710 lb. | 3870 lb. | -160 lb. |
| Fuel Capacity | 16.9 gal. | 19.2 gal. | -2.3 gal. |
| Headroom, Row 1 | 40.4 in | 39.4 in | 1 in |
| Shoulder Room, Row 1 | 55.5 in | 57.9 in | -2.4 in |
| Hip Room, Row 1 | 0.0 in | 55.6 in | -55.6 in |
| Legroom, Row 1 | 41.3 in | 42.5 in | -1.2 in |
| Headroom, Row 2 | 38.2 in | 38.6 in | -0.4 in |
| Shoulder Room, Row 2 | 54.3 in | 57.1 in | -2.8 in |
| Hip Room, Row 2 | 0.0 in | 55.1 in | -55.1 in |
| Legroom, Row 2 | 35.2 in | 36.4 in | -1.2 in |
| Total Legroom | 76.5 in (over 2 rows) | 78.9 in (over 2 rows) | -2.4 in |
| Cargo Volume, Minimum | 17.3 ft3 | 38.3 ft3 | -21 ft3 |
| Cargo Volume, Maximum | 50.5 ft3 | 84.7 ft3 | -34.2 ft3 |
| 2010 Audi A4 / S4 Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2010 | 4dr Wagon turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD |
Huh, never have, never will sit in the back of this car...It is a hoot to drive see full Audi A4 / S4 review |
| 2010 | 4dr Sedan supercharged 333hp 3.0L V6 7-speed automated manual AWD |
Padding a bit stiff see full Audi A4 / S4 review |
| 2010 | 4dr Sedan supercharged 333hp 3.0L V6 7-speed automated manual AWD |
Too narrow see full Audi A4 / S4 review |
| 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 |