Cadillac ATS vs Buick Regal Dimensions & Size Comparison
Comparing 2017 catalog dimensions. Cadillac ATS · Buick Regal
- Length182.8 in – 183.6 in
- Height54.8 in – 56.4 in
- Wheelbase109.3 in
- Curb weight3,373 lb – 3,693 lb
- Width71.1 in – 72.5 in
- Buick Regal width73.1 in
Which is bigger?
- Length: Cadillac ATS is 7.0 in shorter (183.2 in vs 190.2 in)
- Width: Cadillac ATS is 1.3 in narrower (71.8 in vs 73.1 in)
- Height: Buick Regal is 2.6 in taller (55.6 in vs 58.2 in)
- Wheelbase: Cadillac ATS has a 1.5 in longer wheelbase (109.3 in vs 107.8 in)
- Curb weight: Buick Regal is 258 lb heavier (3,533 lb vs 3,791 lb)
Biggest size differences
- Curb weight: Buick Regal is 258 lb heavier (3,533 lb vs 3,791 lb)
- Height: Buick Regal is 2.6 in taller (55.6 in vs 58.2 in)
- Length: Cadillac ATS is 7.0 in shorter (183.2 in vs 190.2 in)
- Width: Cadillac ATS is 1.3 in narrower (71.8 in vs 73.1 in)
- Wheelbase: Cadillac ATS has a 1.5 in longer wheelbase (109.3 in vs 107.8 in)
Practical verdicts
- Easier to fit in a short garageCadillac ATS — Cadillac ATS is shorter by 7.0 in Check garage fit for Cadillac ATS · garage fit for Buick Regal
- Narrower for tight parkingCadillac ATS — Cadillac ATS is narrower by 1.3 in
- Smaller exterior footprintCadillac ATS — Based on length × width (Cadillac ATS)
Dimension comparison
| Spec | Cadillac ATS | Buick Regal | Difference |
|---|---|---|---|
| Length | 183.2 in | 190.2 in | 7.0 in |
| Width | 71.8 in | 73.1 in | 1.3 in |
| Height | 55.6 in | 58.2 in | 2.6 in |
| Wheelbase | 109.3 in | 107.8 in | 1.5 in |
| Ground clearance | — | 5.5 in | — |
| Curb weight | 3,533 lb | 3,791 lb | 258 lb |
Values use trim midpoints when a model year lists a range (e.g. length 182.8 in – 183.6 in).
Compare by year
Overlapping model years with dimension data.
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