BMW M4 vs BMW M8 Dimensions & Size Comparison
Comparing 2023 catalog dimensions. BMW M4 · BMW M8
- Length188.7 in – 189.1 in
- Height54.6 in – 54.9 in
- Wheelbase112.5 in
- Curb weight3,640 lb – 4,306 lb
- Width74.3 in – 75.6 in
- BMW M8 width74.9 in
Which is bigger?
- Length: BMW M4 is 2.3 in shorter (188.9 in vs 191.2 in)
- Width: essentially the same
- Height: BMW M4 is 1.8 in taller (54.8 in vs 53.0 in)
- Wheelbase: BMW M4 has a 1.4 in longer wheelbase (112.5 in vs 111.1 in)
- Curb weight: BMW M8 is 455 lb heavier (3,973 lb vs 4,428 lb)
Biggest size differences
- Curb weight: BMW M8 is 455 lb heavier (3,973 lb vs 4,428 lb)
- Height: BMW M4 is 1.8 in taller (54.8 in vs 53.0 in)
- Wheelbase: BMW M4 has a 1.4 in longer wheelbase (112.5 in vs 111.1 in)
- Length: BMW M4 is 2.3 in shorter (188.9 in vs 191.2 in)
Practical verdicts
- Easier to fit in a short garageBMW M4 — BMW M4 is shorter by 2.3 in Check garage fit for BMW M4 · garage fit for BMW M8
- Smaller exterior footprintBMW M4 — Based on length × width (BMW M4)
Dimension comparison
| Spec | BMW M4 | BMW M8 | Difference |
|---|---|---|---|
| Length | 188.9 in | 191.2 in | 2.3 in |
| Width | 74.9 in | 74.9 in | 0.0 in |
| Height | 54.8 in | 53.0 in | 1.8 in |
| Wheelbase | 112.5 in | 111.1 in | 1.4 in |
| Ground clearance | — | 5.0 in | — |
| Curb weight | 3,973 lb | 4,428 lb | 455 lb |
Values use trim midpoints when a model year lists a range (e.g. length 188.7 in – 189.1 in).
Compare by year
Overlapping model years with dimension data.
Already own one of these cars?
Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.