BMW M3 vs Audi S6 Dimensions & Size Comparison
Comparing 2021 catalog dimensions. BMW M3 · Audi S6
- Length189.1 in
- Height56.4 in
- Wheelbase112.5 in
- Curb weight3,840 lb – 3,890 lb
- Width74.3 in
- Audi S6 width74.3 in
Which is bigger?
- Length: BMW M3 is 5.9 in shorter (189.1 in vs 195.0 in)
- Width: essentially the same
- Height: Audi S6 is 0.5 in taller (56.4 in vs 56.9 in)
- Wheelbase: Audi S6 has a 2.8 in longer wheelbase (112.5 in vs 115.3 in)
- Curb weight: Audi S6 is 621 lb heavier (3,865 lb vs 4,486 lb)
Biggest size differences
- Curb weight: Audi S6 is 621 lb heavier (3,865 lb vs 4,486 lb)
- Length: BMW M3 is 5.9 in shorter (189.1 in vs 195.0 in)
- Wheelbase: Audi S6 has a 2.8 in longer wheelbase (112.5 in vs 115.3 in)
- Height: Audi S6 is 0.5 in taller (56.4 in vs 56.9 in)
Practical verdicts
- Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 5.9 in Check garage fit for BMW M3 · garage fit for Audi S6
- Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)
Dimension comparison
| Spec | BMW M3 | Audi S6 | Difference |
|---|---|---|---|
| Length | 189.1 in | 195.0 in | 5.9 in |
| Width | 74.3 in | 74.3 in | 0.0 in |
| Height | 56.4 in | 56.9 in | 0.5 in |
| Wheelbase | 112.5 in | 115.3 in | 2.8 in |
| Curb weight | 3,865 lb | 4,486 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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