| Model Year | 2013 | 2012 | |
| Model | Mercedes-Benz SLS AMG | BMW 5-Series | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Coupe | 4dr Sedan | |
| Difference | |||
| Wheelbase | 105.5 in | 116.9 in | -11.4 in |
| Length | 182.6 in | 193.1 in | -10.5 in |
| Width | 76.3 in | 73.2 in | 3.1 in |
| Height | 49.3 in | 57.6 in | -8.3 in |
| Curb Weight | 3726 lb. | 3814 lb. | -88 lb. |
| Fuel Capacity | 22.5 gal. | 18.5 gal. | 4 gal. |
| Headroom, Row 1 | 39.0 in | 40.5 in | -1.5 in |
| Shoulder Room, Row 1 | 58.4 in | 58.3 in | 0.1 in |
| Hip Room, Row 1 | 63.2 in | 0.0 in | 63.2 in |
| Legroom, Row 1 | 41.7 in | 41.4 in | 0.3 in |
| Headroom, Row 2 | 0.0 in | 38.3 in | -38.3 in |
| Shoulder Room, Row 2 | 0.0 in | 56.2 in | -56.2 in |
| Legroom, Row 2 | 0.0 in | 36.1 in | -36.1 in |
| Total Legroom | 41.7 in (over 1 rows) | 77.5 in (over 2 rows) | -35.8 in |
| Cargo Volume | 6.2 ft3 | 18.4 ft3 | -12.2 ft3 |
None of our members have yet commented on the seat room and comfort of the 2013 Mercedes-Benz SLS AMG.
None of our members have yet commented on the seat room and comfort of the 2012 BMW 5-Series.