| Model Year | 2015 | 2023 | |
| Model | BMW 4-Series | BMW i7 | |
| Engine | turbocharged 3.0L I6 DOHC-4v 425 hp@5500 406 lb-ft@1850 |
Electric 536 hp 549 lb-ft |
|
| Transmission | 7-speed automated manual | 1-speed automatic | |
| Drivetrain | RWD | AWD | |
| Body | 2dr Hardtop conv. | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 110.6 in | 126.6 in | -16 in |
| Length | 182.6 in | 212.2 in | -29.6 in |
| Width | 71.9 in | 76.8 in | -4.9 in |
| Height | 54.5 in | 60.8 in | -6.3 in |
| Curb Weight | 4110 lb. | 5917 lb. | -1807 lb. |
| Fuel Capacity | 15.8 gal. | 0.0 gal. | 15.8 gal. |
| Headroom, Row 1 | 40.4 in | 39.8 in | 0.6 in |
| Shoulder Room, Row 1 | 55.3 in | 61.0 in | -5.7 in |
| Legroom, Row 1 | 42.2 in | 41.2 in | 1 in |
| Headroom, Row 2 | 37.1 in | 38.6 in | -1.5 in |
| Shoulder Room, Row 2 | 49.8 in | 56.3 in | -6.5 in |
| Legroom, Row 2 | 33.1 in | 43.3 in | -10.2 in |
| Total Legroom | 75.3 in (over 2 rows) | 84.5 in (over 2 rows) | -9.2 in |
| Cargo Volume, Minimum | 7.8 ft3 | 18.0 ft3 | -10.2 ft3 |
| Cargo Volume, Maximum | 13.0 ft3 | 18.0 ft3 | -5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 BMW 4-Series.
None of our members have yet commented on the seat room and comfort of the 2023 BMW i7.