| Model Year | 2020 | 2015 | |
| Model | Mercedes-Benz GLA | Porsche 911 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 2dr Coupe | |
| Difference | |||
| Wheelbase | 106.3 in | 96.5 in | 9.8 in |
| Length | 173.9 in | 176.8 in | -2.9 in |
| Width | 71.0 in | 71.2 in | -0.2 in |
| Height | 60.0 in | 51.3 in | 8.7 in |
| Curb Weight | 3296 lb. | 3042 lb. | 254 lb. |
| Fuel Capacity | 14.8 gal. | 16.9 gal. | -2.1 gal. |
| Headroom, Row 1 | 40.0 in | 0.0 in | 40 in |
| Shoulder Room, Row 1 | 54.8 in | 0.0 in | 54.8 in |
| Legroom, Row 1 | 41.9 in | 0.0 in | 41.9 in |
| Headroom, Row 2 | 38.4 in | 0.0 in | 38.4 in |
| Shoulder Room, Row 2 | 53.1 in | 0.0 in | 53.1 in |
| Legroom, Row 2 | 33.9 in | 0.0 in | 33.9 in |
| Total Legroom | 75.8 in (over 2 rows) | 0 in (over 1 rows) | 75.8 in |
| Cargo Volume, Minimum | 17.2 ft3 | 4.8 ft3 | 12.4 ft3 |
| Cargo Volume, Maximum | 43.6 ft3 | 4.8 ft3 | 38.8 ft3 |
None of our members have yet commented on the seat room and comfort of the 2020 Mercedes-Benz GLA.
None of our members have yet commented on the seat room and comfort of the 2015 Porsche 911.