Porsche 911 vs BMW M4 Dimensions & Size Comparison
Comparing 2016 catalog dimensions. Porsche 911 · BMW M4
- Length176.8 in – 177.5 in
- Height50.8 in – 51.3 in
- Wheelbase96.5 in
- Ground clearance4.8 in
- Curb weight3,042 lb – 3,693 lb
- Width71.2 in – 74.0 in
- BMW M4 width73.6 in
Which is bigger?
- Length: Porsche 911 is 7.3 in shorter (177.2 in vs 184.5 in)
- Width: Porsche 911 is 1.0 in narrower (72.6 in vs 73.6 in)
- Height: BMW M4 is 3.5 in taller (51.0 in vs 54.5 in)
- Wheelbase: BMW M4 has a 14.2 in longer wheelbase (96.5 in vs 110.7 in)
- Ground clearance: essentially the same
- Curb weight: BMW M4 is 425 lb heavier (3,368 lb vs 3,793 lb)
Biggest size differences
- Wheelbase: BMW M4 has a 14.2 in longer wheelbase (96.5 in vs 110.7 in)
- Curb weight: BMW M4 is 425 lb heavier (3,368 lb vs 3,793 lb)
- Height: BMW M4 is 3.5 in taller (51.0 in vs 54.5 in)
- Length: Porsche 911 is 7.3 in shorter (177.2 in vs 184.5 in)
- Width: Porsche 911 is 1.0 in narrower (72.6 in vs 73.6 in)
Practical verdicts
- Easier to fit in a short garagePorsche 911 — Porsche 911 is shorter by 7.3 in Check garage fit for Porsche 911 · garage fit for BMW M4
- Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 1.0 in
- Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)
Dimension comparison
| Spec | Porsche 911 | BMW M4 | Difference |
|---|---|---|---|
| Length | 177.2 in | 184.5 in | 7.3 in |
| Width | 72.6 in | 73.6 in | 1.0 in |
| Height | 51.0 in | 54.5 in | 3.5 in |
| Wheelbase | 96.5 in | 110.7 in | 14.2 in |
| Ground clearance | 4.8 in | 4.8 in | 0.0 in |
| Curb weight | 3,368 lb | 3,793 lb | 425 lb |
Values use trim midpoints when a model year lists a range (e.g. length 176.8 in – 177.5 in).
Compare by year
Overlapping model years with dimension data.
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