| Model Year | 2011 | 2024 | |
| Model | Chevrolet HHR | Cadillac Lyriq | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Wagon | 4dr SUV | |
| Difference | |||
| Wheelbase | 103.5 in | 121.8 in | -18.3 in |
| Length | 176.2 in | 196.7 in | -20.5 in |
| Width | 69.1 in | 77.8 in | -8.7 in |
| Height | 63.1 in | 63.9 in | -0.8 in |
| Curb Weight | 3155 lb. | 5557 lb. | -2402 lb. |
| Fuel Capacity | 16.0 gal. | 0.0 gal. | 16 gal. |
| Headroom, Row 1 | 39.6 in | 38.6 in | 1 in |
| Shoulder Room, Row 1 | 53.5 in | 58.9 in | -5.4 in |
| Hip Room, Row 1 | 50.1 in | 56.5 in | -6.4 in |
| Legroom, Row 1 | 40.6 in | 42.8 in | -2.2 in |
| Headroom, Row 2 | 39.0 in | 37.7 in | 1.3 in |
| Shoulder Room, Row 2 | 52.7 in | 58.6 in | -5.9 in |
| Hip Room, Row 2 | 50.6 in | 54.0 in | -3.4 in |
| Legroom, Row 2 | 39.5 in | 39.6 in | -0.1 in |
| Total Legroom | 80.1 in (over 2 rows) | 82.4 in (over 2 rows) | -2.3 in |
| Cargo Volume, Minimum | 23.8 ft3 | 28.0 ft3 | -4.2 ft3 |
| Cargo Volume, Maximum | 57.7 ft3 | 60.8 ft3 | -3.1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2011 Chevrolet HHR.
None of our members have yet commented on the seat room and comfort of the 2024 Cadillac Lyriq.