| Model Year | 2009 | 2023 | |
| Model | Mercedes-Benz R-Class | BMW i7 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 126.6 in | 126.6 in | 0 in |
| Length | 203.0 in | 212.2 in | -9.2 in |
| Width | 75.7 in | 76.8 in | -1.1 in |
| Height | 65.4 in | 60.8 in | 4.6 in |
| Curb Weight | 4829 lb. | 5917 lb. | -1088 lb. |
| Fuel Capacity | 25.1 gal. | 0.0 gal. | 25.1 gal. |
| Headroom, Row 1 | 39.8 in | 39.8 in | 0 in |
| Shoulder Room, Row 1 | 60.3 in | 61.0 in | -0.7 in |
| Legroom, Row 1 | 39.8 in | 41.2 in | -1.4 in |
| Headroom, Row 2 | 40.4 in | 38.6 in | 1.8 in |
| Shoulder Room, Row 2 | 59.6 in | 56.3 in | 3.3 in |
| Legroom, Row 2 | 36.2 in | 43.3 in | -7.1 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) | 84.5 in (over 2 rows) | 23.9 in |
| Cargo Volume, Minimum | 15.3 ft3 | 18.0 ft3 | -2.7 ft3 |
| Cargo Volume, Behind R2 | 42.2 ft3 | 18.0 | 24.2 ft3 |
| Cargo Volume, Maximum | 85.0 ft3 | 18.0 ft3 | 67 ft3 |
| 2009 Mercedes-Benz R-Class Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD |
Very roomie see full Mercedes-Benz R-Class review |
| 2009 Mercedes-Benz R-Class Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2009 | 4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD |
Three different lumbar pumps...don't seem to be very different in what is inflated. see full Mercedes-Benz R-Class review |
None of our members have yet commented on the seat room and comfort of the 2023 BMW i7.