Cadillac ATS vs Buick Regal Sportback Dimensions & Size Comparison
Comparing 2019 vs 2020 catalog dimensions. Cadillac ATS · Buick Regal Sportback
- Length183.6 in
- Height54.8 in – 55.3 in
- Wheelbase109.3 in
- Curb weight3,418 lb – 3,693 lb
- Width72.5 in
- Buick Regal Sportback width73.3 in
Which is bigger?
- Length: Cadillac ATS is 9.3 in shorter (183.6 in vs 192.9 in)
- Width: Cadillac ATS is 0.8 in narrower (72.5 in vs 73.3 in)
- Height: Buick Regal Sportback is 2.3 in taller (55.0 in vs 57.3 in)
- Wheelbase: Buick Regal Sportback has a 2.1 in longer wheelbase (109.3 in vs 111.4 in)
- Curb weight: Buick Regal Sportback is 454 lb heavier (3,556 lb vs 4,009 lb)
Biggest size differences
- Curb weight: Buick Regal Sportback is 454 lb heavier (3,556 lb vs 4,009 lb)
- Length: Cadillac ATS is 9.3 in shorter (183.6 in vs 192.9 in)
- Height: Buick Regal Sportback is 2.3 in taller (55.0 in vs 57.3 in)
- Wheelbase: Buick Regal Sportback has a 2.1 in longer wheelbase (109.3 in vs 111.4 in)
- Width: Cadillac ATS is 0.8 in narrower (72.5 in vs 73.3 in)
Practical verdicts
- Easier to fit in a short garageCadillac ATS — Cadillac ATS is shorter by 9.3 in Check garage fit for Cadillac ATS · garage fit for Buick Regal Sportback
- Narrower for tight parkingCadillac ATS — Cadillac ATS is narrower by 0.8 in
- Smaller exterior footprintCadillac ATS — Based on length × width (Cadillac ATS)
Dimension comparison
| Spec | Cadillac ATS | Buick Regal Sportback | Difference |
|---|---|---|---|
| Length | 183.6 in | 192.9 in | 9.3 in |
| Width | 72.5 in | 73.3 in | 0.8 in |
| Height | 55.0 in | 57.3 in | 2.3 in |
| Wheelbase | 109.3 in | 111.4 in | 2.1 in |
| Curb weight | 3,556 lb | 4,009 lb | 454 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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