| Model Year | 2015 | 2019 | |
| Model | Mercedes-Benz M-Class | Cadillac CTS | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan | |
| Difference | |||
| Wheelbase | 114.8 in | 114.6 in | 0.2 in |
| Length | 189.1 in | 195.5 in | -6.4 in |
| Width | 75.2 in | 72.2 in | 3 in |
| Height | 70.7 in | 57.2 in | 13.5 in |
| Curb Weight | 4751 lb. | 3655 lb. | 1096 lb. |
| Fuel Capacity | 24.6 gal. | 19.0 gal. | 5.6 gal. |
| Headroom, Row 1 | 38.9 in | 39.2 in | -0.3 in |
| Shoulder Room, Row 1 | 58.5 in | 56.9 in | 1.6 in |
| Hip Room, Row 1 | 0.0 in | 53.8 in | -53.8 in |
| Legroom, Row 1 | 40.3 in | 42.6 in | -2.3 in |
| Headroom, Row 2 | 38.5 in | 37.5 in | 1 in |
| Shoulder Room, Row 2 | 58.4 in | 54.8 in | 3.6 in |
| Hip Room, Row 2 | 0.0 in | 53.3 in | -53.3 in |
| Legroom, Row 2 | 38.4 in | 35.4 in | 3 in |
| Total Legroom | 78.7 in (over 2 rows) | 78 in (over 2 rows) | 0.7 in |
| Cargo Volume, Minimum | 36.2 ft3 | 13.7 ft3 | 22.5 ft3 |
| Cargo Volume, Maximum | 71.0 ft3 | 13.7 ft3 | 57.3 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 Mercedes-Benz M-Class.
None of our members have yet commented on the seat room and comfort of the 2019 Cadillac CTS.