| Model Year | 2021 | 2008 | |
| Model | BMW Z4 | Mercedes-Benz M-Class | |
| Engine | turbocharged 3.0L I6 DOHC-4v 382 hp@5500 368 lb-ft@1850 |
6.2L V8 DOHC-4v 503 hp@6800 465 lb-ft@5200 |
|
| Transmission | 8-speed shiftable automatic | 7-speed shiftable automatic | |
| Drivetrain | RWD | AWD | |
| Body | 2dr Convertible | 4dr SUV | |
| Difference | |||
| Wheelbase | 97.2 in | 114.7 in | -17.5 in |
| Length | 170.7 in | 188.5 in | -17.8 in |
| Width | 73.4 in | 75.2 in | -1.8 in |
| Height | 51.4 in | 71.5 in | -20.1 in |
| Curb Weight | 3457 lb. | 5093 lb. | -1636 lb. |
| Fuel Capacity | 13.7 gal. | 25.1 gal. | -11.4 gal. |
| Headroom, Row 1 | 38.9 in | 39.9 in | -1 in |
| Shoulder Room, Row 1 | 54.3 in | 59.9 in | -5.6 in |
| Hip Room, Row 1 | 0.0 in | 55.0 in | -55 in |
| Legroom, Row 1 | 42.2 in | 42.2 in | 0 in |
| Headroom, Row 2 | 0.0 in | 39.8 in | -39.8 in |
| Shoulder Room, Row 2 | 0.0 in | 59.8 in | -59.8 in |
| Legroom, Row 2 | 0.0 in | 40.0 in | -40 in |
| Total Legroom | 42.2 in (over 1 rows) | 82.2 in (over 2 rows) | -40 in |
| Cargo Volume, Minimum | 9.9 ft3 | 29.4 ft3 | -19.5 ft3 |
| Cargo Volume, Maximum | 9.9 ft3 | 72.4 ft3 | -62.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 BMW Z4.
| 2008 Mercedes-Benz M-Class Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
Bottom seat cushions are long enough for taller drivers. Padding is not too firm or too soft. Excellent support and an upright, easy-chair seating position, instead of having to extend your legs horizontally to get legroom. Results in no low back pain. see full Mercedes-Benz M-Class review |
| 2007 | 4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
Can drive this vehicle all day long and not be tired. see full Mercedes-Benz M-Class review |
| 2008 Mercedes-Benz M-Class Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD |
very still and uncomfortable for long drives see full Mercedes-Benz M-Class review |