| Model Year | 2011 | 2015 | |
| Model | Mercedes-Benz M-Class | BMW Z4 | |
| Engine | 6.2L V8 DOHC-4v 503 hp@6800 465 lb-ft@5200 |
turbocharged 3.0L I6 DOHC-4v 335 hp@5900 332 lb-ft@1500 |
|
| Transmission | 7-speed shiftable automatic | 7-speed automated manual | |
| Drivetrain | AWD | RWD | |
| Body | 4dr SUV | 2dr Hardtop conv. | |
| Difference | |||
| Wheelbase | 114.7 in | 98.3 in | 16.4 in |
| Length | 188.5 in | 166.9 in | 21.6 in |
| Width | 75.2 in | 70.5 in | 4.7 in |
| Height | 70.1 in | 50.8 in | 19.3 in |
| Curb Weight | 5093 lb. | 3538 lb. | 1555 lb. |
| Fuel Capacity | 25.1 gal. | 14.5 gal. | 10.6 gal. |
| Headroom, Row 1 | 39.9 in | 39.1 in | 0.8 in |
| Shoulder Room, Row 1 | 59.9 in | 53.3 in | 6.6 in |
| Hip Room, Row 1 | 55.9 in | 0.0 in | 55.9 in |
| Legroom, Row 1 | 42.2 in | 42.2 in | 0 in |
| Headroom, Row 2 | 39.8 in | 0.0 in | 39.8 in |
| Shoulder Room, Row 2 | 59.8 in | 0.0 in | 59.8 in |
| Hip Room, Row 2 | 56.2 in | 0.0 in | 56.2 in |
| Legroom, Row 2 | 40.0 in | 0.0 in | 40 in |
| Total Legroom | 82.2 in (over 2 rows) | 42.2 in (over 1 rows) | 40 in |
| Cargo Volume, Minimum | 29.4 ft3 | 10.9 ft3 | 18.5 ft3 |
| Cargo Volume, Maximum | 72.4 ft3 | 10.9 ft3 | 61.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2011 Mercedes-Benz M-Class.
None of our members have yet commented on the seat room and comfort of the 2015 BMW Z4.