BMW M3 vs Buick Regal Sportback Dimensions & Size Comparison
Comparing 2021 vs 2020 catalog dimensions. BMW M3 · Buick Regal Sportback
- Length189.1 in
- Height56.4 in
- Wheelbase112.5 in
- Curb weight3,840 lb – 3,890 lb
- Width74.3 in
- Buick Regal Sportback width73.3 in
Which is bigger?
- Length: BMW M3 is 3.8 in shorter (189.1 in vs 192.9 in)
- Width: Buick Regal Sportback is 1.0 in narrower (74.3 in vs 73.3 in)
- Height: Buick Regal Sportback is 0.9 in taller (56.4 in vs 57.3 in)
- Wheelbase: BMW M3 has a 1.1 in longer wheelbase (112.5 in vs 111.4 in)
- Curb weight: Buick Regal Sportback is 144 lb heavier (3,865 lb vs 4,009 lb)
Biggest size differences
- Curb weight: Buick Regal Sportback is 144 lb heavier (3,865 lb vs 4,009 lb)
- Length: BMW M3 is 3.8 in shorter (189.1 in vs 192.9 in)
- Height: Buick Regal Sportback is 0.9 in taller (56.4 in vs 57.3 in)
- Width: Buick Regal Sportback is 1.0 in narrower (74.3 in vs 73.3 in)
- Wheelbase: BMW M3 has a 1.1 in longer wheelbase (112.5 in vs 111.4 in)
Practical verdicts
- Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 3.8 in Check garage fit for BMW M3 · garage fit for Buick Regal Sportback
- Narrower for tight parkingBuick Regal Sportback — Buick Regal Sportback is narrower by 1.0 in
Dimension comparison
| Spec | BMW M3 | Buick Regal Sportback | Difference |
|---|---|---|---|
| Length | 189.1 in | 192.9 in | 3.8 in |
| Width | 74.3 in | 73.3 in | 1.0 in |
| Height | 56.4 in | 57.3 in | 0.9 in |
| Wheelbase | 112.5 in | 111.4 in | 1.1 in |
| Curb weight | 3,865 lb | 4,009 lb | 144 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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