| Model Year | 2012 | 2017 | |
| Model | Mercedes-Benz R-Class | BMW X4 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr SUV | |
| Difference | |||
| Wheelbase | 126.6 in | 110.6 in | 16 in |
| Length | 203.1 in | 184.3 in | 18.8 in |
| Width | 77.1 in | 74.1 in | 3 in |
| Height | 65.4 in | 63.9 in | 1.5 in |
| Curb Weight | 4960 lb. | 4130 lb. | 830 lb. |
| Fuel Capacity | 21.1 gal. | 17.7 gal. | 3.4 gal. |
| Headroom, Row 1 | 39.8 in | 40.0 in | -0.2 in |
| Shoulder Room, Row 1 | 60.3 in | 57.2 in | 3.1 in |
| Legroom, Row 1 | 39.8 in | 40.4 in | -0.6 in |
| Headroom, Row 2 | 40.4 in | 37.4 in | 3 in |
| Shoulder Room, Row 2 | 59.6 in | 56.0 in | 3.6 in |
| Legroom, Row 2 | 36.2 in | 34.8 in | 1.4 in |
| Headroom, Row 3 | 37.2 in | 0.0 in | 37.2 in |
| Shoulder Room, Row 3 | 52.8 in | 0.0 in | 52.8 in |
| Legroom, Row 3 | 32.4 in | 0.0 in | 32.4 in |
| Total Legroom | 108.4 in (over 3 rows) | 75.2 in (over 2 rows) | 33.2 in |
| Cargo Volume, Minimum | 15.2 ft3 | 17.7 ft3 | -2.5 ft3 |
| Cargo Volume, Behind R2 | 42.2 ft3 | 17.7 | 24.5 ft3 |
| Cargo Volume, Maximum | 85.0 ft3 | 49.4 ft3 | 35.6 ft3 |
None of our members have yet commented on the seat room and comfort of the 2012 Mercedes-Benz R-Class.
None of our members have yet commented on the seat room and comfort of the 2017 BMW X4.