BMW i8 vs BMW M4 Dimensions & Size Comparison
Comparing 2020 vs 2023 catalog dimensions. BMW i8 · BMW M4
- Length184.9 in
- Height50.7 in – 50.8 in
- Wheelbase110.2 in
- Curb weight3,501 lb – 3,671 lb
- Width76.5 in
- BMW M4 width74.3 in – 75.6 in
Which is bigger?
- Length: BMW i8 is 4.0 in shorter (184.9 in vs 188.9 in)
- Width: BMW M4 is 1.6 in narrower (76.5 in vs 74.9 in)
- Height: BMW M4 is 4.0 in taller (50.8 in vs 54.8 in)
- Wheelbase: BMW M4 has a 2.3 in longer wheelbase (110.2 in vs 112.5 in)
- Curb weight: BMW M4 is 387 lb heavier (3,586 lb vs 3,973 lb)
Biggest size differences
- Curb weight: BMW M4 is 387 lb heavier (3,586 lb vs 3,973 lb)
- Height: BMW M4 is 4.0 in taller (50.8 in vs 54.8 in)
- Length: BMW i8 is 4.0 in shorter (184.9 in vs 188.9 in)
- Width: BMW M4 is 1.6 in narrower (76.5 in vs 74.9 in)
- Wheelbase: BMW M4 has a 2.3 in longer wheelbase (110.2 in vs 112.5 in)
Practical verdicts
- Easier to fit in a short garageBMW i8 — BMW i8 is shorter by 4.0 in Check garage fit for BMW i8 · garage fit for BMW M4
- Narrower for tight parkingBMW M4 — BMW M4 is narrower by 1.6 in
Dimension comparison
| Spec | BMW i8 | BMW M4 | Difference |
|---|---|---|---|
| Length | 184.9 in | 188.9 in | 4.0 in |
| Width | 76.5 in | 74.9 in | 1.6 in |
| Height | 50.8 in | 54.8 in | 4.0 in |
| Wheelbase | 110.2 in | 112.5 in | 2.3 in |
| Curb weight | 3,586 lb | 3,973 lb | 387 lb |
Values use trim midpoints when a model year lists a range.
Compare by year
Overlapping model years with dimension data.
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