| Model Year | 2007 | 2015 | |
| Model | Lexus GS | Mercedes-Benz M-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 112.2 in | 114.8 in | -2.6 in |
| Length | 190.0 in | 189.1 in | 0.9 in |
| Width | 71.7 in | 75.2 in | -3.5 in |
| Height | 56.1 in | 70.7 in | -14.6 in |
| Curb Weight | 3704 lb. | 4751 lb. | -1047 lb. |
| Fuel Capacity | 18.8 gal. | 24.6 gal. | -5.8 gal. |
| Headroom, Row 1 | 37.8 in | 38.9 in | -1.1 in |
| Shoulder Room, Row 1 | 56.3 in | 58.5 in | -2.2 in |
| Hip Room, Row 1 | 54.4 in | 0.0 in | 54.4 in |
| Legroom, Row 1 | 43.5 in | 40.3 in | 3.2 in |
| Headroom, Row 2 | 37.0 in | 38.5 in | -1.5 in |
| Shoulder Room, Row 2 | 55.1 in | 58.4 in | -3.3 in |
| Hip Room, Row 2 | 51.4 in | 0.0 in | 51.4 in |
| Legroom, Row 2 | 36.4 in | 38.4 in | -2 in |
| Total Legroom | 79.9 in (over 2 rows) | 78.7 in (over 2 rows) | 1.2 in |
| Cargo Volume, Minimum | 12.7 ft3 | 36.2 ft3 | -23.5 ft3 |
| Cargo Volume, Maximum | 12.7 ft3 | 71.0 ft3 | -58.3 ft3 |
| 2007 Lexus GS Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2006 | 4dr Sedan 245-horsepower 3.0L V6 6-speed shiftable automatic AWD |
Very good front seats with excellent back and head/neck spport for those of us who are spinally challengged. see full Lexus GS review |
| 2007 Lexus GS Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2006 | 4dr Sedan 300-horsepower 4.3L V8 6-speed shiftable automatic RWD |
comfortable but tight see full Lexus GS review |
None of our members have yet commented on the seat room and comfort of the 2015 Mercedes-Benz M-Class.