| Model Year | 2008 | 2009 | |
| Model | Acura MDX | Lexus IS | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan | |
| Difference | |||
| Wheelbase | 108.3 in | 107.5 in | 0.8 in |
| Length | 190.7 in | 180.1 in | 10.6 in |
| Width | 78.5 in | 70.9 in | 7.6 in |
| Height | 68.2 in | 56.1 in | 12.1 in |
| Curb Weight | 4539 lb. | 3455 lb. | 1084 lb. |
| Fuel Capacity | 21.0 gal. | 17.2 gal. | 3.8 gal. |
| Headroom, Row 1 | 39.2 in | 37.2 in | 2 in |
| Shoulder Room, Row 1 | 61.6 in | 54.4 in | 7.2 in |
| Hip Room, Row 1 | 59.0 in | 54.1 in | 4.9 in |
| Legroom, Row 1 | 41.2 in | 43.9 in | -2.7 in |
| Headroom, Row 2 | 38.6 in | 36.7 in | 1.9 in |
| Shoulder Room, Row 2 | 61.5 in | 52.7 in | 8.8 in |
| Hip Room, Row 2 | 59.1 in | 53.7 in | 5.4 in |
| Legroom, Row 2 | 38.7 in | 30.6 in | 8.1 in |
| Headroom, Row 3 | 35.7 in | 0.0 in | 35.7 in |
| Shoulder Room, Row 3 | 57.1 in | 0.0 in | 57.1 in |
| Hip Room, Row 3 | 42.0 in | 0.0 in | 42 in |
| Legroom, Row 3 | 29.1 in | 0.0 in | 29.1 in |
| Total Legroom | 109 in (over 3 rows) | 74.5 in (over 2 rows) | 34.5 in |
| Cargo Volume, Minimum | 15.0 ft3 | 13.0 ft3 | 2 ft3 |
| Cargo Volume, Behind R2 | 42.9 ft3 | 13.0 | 29.9 ft3 |
| Cargo Volume, Maximum | 83.5 ft3 | 13.0 ft3 | 70.5 ft3 |
| 2008 Acura MDX Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
Vehicle is wide, and it feels very room from boht the drivers' and passengers' sides. see full Acura MDX review |
| 2008 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
It was the most comfortable of the vehicles we tested, including the Volvo XC90, Toyota Highlander Hybrid Limited, and Mazda CX-9 Grand Touring. Soft leather, supportive seats. see full Acura MDX review |
| 2007 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
The 3rd row seat can eaily seat 2 adults or even 3 kids see full Acura MDX review |
| 2007 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
very comfortable for long trips of 500 or more miles see full Acura MDX review |
| 2008 Acura MDX Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
Claustrophic, unusable 3rd row, with immovable knee-wall see full Acura MDX review |
| 2007 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
Not enough thigh support. see full Acura MDX review |
| 2007 | 4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD |
Leg room in far back seat to little. see full Acura MDX review |
| 2009 Lexus IS Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 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 |
| 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 |
| 2009 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD |
Cramped rear seat. Minimal knee and leg room when there is a front driver/passenger. Minimal room for the toddler when sitting in a car seat. Seats 2 small kids at best. see full Lexus IS review |
| 2009 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD |
Yeah, the back is small but still big enough to handle for the poor rear seat passengers. see full Lexus IS review |
| 2009 | 4dr Sedan 306-horsepower 3.5L V6 6-speed shiftable automatic RWD |
This is a small car. Interior seating is comfortable but tight. Unless the driver is very short, forget about the back seat. see full Lexus IS review |
| 2009 | 4dr Sedan 306-horsepower 3.5L V6 6-speed shiftable automatic RWD |
Don't buy this car if you ever plan on carrying four adults. see full Lexus IS review |
| 2008 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD |
The rear seats are very comfortable, but TINY. see full Lexus IS review |
| 2008 | 4dr Sedan 306-horsepower 3.5L V6 6-speed shiftable automatic RWD |
The rear seat really is too small for adults. The front seats have to be moved forward for adults to sit in the back. see full Lexus IS review |
| 2008 | 4dr Sedan 416-horsepower 5.0L V8 8-speed shiftable automatic RWD |
Not enough rear legroom. see full Lexus IS review |
| 2008 | 4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD |
Small rear seat. More like a coupe with 4 doors. see full Lexus IS review |