Audi S6 vs BMW M3 Dimensions & Size Comparison
Comparing 2021 catalog dimensions. Audi S6 · BMW M3
- Length195.0 in
- Height56.9 in
- Wheelbase115.3 in
- Curb weight4,486 lb
- Width74.3 in
- BMW M3 width74.3 in
Which is bigger?
- Length: BMW M3 is 5.9 in shorter (195.0 in vs 189.1 in)
- Width: essentially the same
- Height: Audi S6 is 0.5 in taller (56.9 in vs 56.4 in)
- Wheelbase: Audi S6 has a 2.8 in longer wheelbase (115.3 in vs 112.5 in)
- Curb weight: Audi S6 is 621 lb heavier (4,486 lb vs 3,865 lb)
Biggest size differences
- Curb weight: Audi S6 is 621 lb heavier (4,486 lb vs 3,865 lb)
- Length: BMW M3 is 5.9 in shorter (195.0 in vs 189.1 in)
- Wheelbase: Audi S6 has a 2.8 in longer wheelbase (115.3 in vs 112.5 in)
- Height: Audi S6 is 0.5 in taller (56.9 in vs 56.4 in)
Practical verdicts
- Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 5.9 in Check garage fit for Audi S6 · garage fit for BMW M3
- Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)
Dimension comparison
| Spec | Audi S6 | BMW M3 | Difference |
|---|---|---|---|
| Length | 195.0 in | 189.1 in | 5.9 in |
| Width | 74.3 in | 74.3 in | 0.0 in |
| Height | 56.9 in | 56.4 in | 0.5 in |
| Wheelbase | 115.3 in | 112.5 in | 2.8 in |
| Curb weight | 4,486 lb | 3,865 lb | 621 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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