Spec Sizes

Buick Regal vs Cadillac ATS Dimensions & Size Comparison

Comparing 2017 catalog dimensions. Buick Regal · Cadillac ATS

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • Length190.2 in
  • Height58.0 in – 58.4 in
  • Wheelbase107.8 in
  • Ground clearance5.5 in
  • Curb weight3,600 lb – 3,981 lb
Front / width
  • Width73.1 in
  • Cadillac ATS width71.1 in – 72.5 in

Which is bigger?

  • Length: Cadillac ATS is 7.0 in shorter (190.2 in vs 183.2 in)
  • Width: Cadillac ATS is 1.3 in narrower (73.1 in vs 71.8 in)
  • Height: Buick Regal is 2.6 in taller (58.2 in vs 55.6 in)
  • Wheelbase: Cadillac ATS has a 1.5 in longer wheelbase (107.8 in vs 109.3 in)
  • Curb weight: Buick Regal is 258 lb heavier (3,791 lb vs 3,533 lb)

Biggest size differences

  1. Curb weight: Buick Regal is 258 lb heavier (3,791 lb vs 3,533 lb)
  2. Height: Buick Regal is 2.6 in taller (58.2 in vs 55.6 in)
  3. Length: Cadillac ATS is 7.0 in shorter (190.2 in vs 183.2 in)
  4. Width: Cadillac ATS is 1.3 in narrower (73.1 in vs 71.8 in)
  5. Wheelbase: Cadillac ATS has a 1.5 in longer wheelbase (107.8 in vs 109.3 in)

Practical verdicts

  • Easier to fit in a short garageCadillac ATS — Cadillac ATS is shorter by 7.0 in Check garage fit for Buick Regal · garage fit for Cadillac ATS
  • 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

SpecBuick RegalCadillac ATSDifference
Length190.2 in183.2 in7.0 in
Width73.1 in71.8 in1.3 in
Height58.2 in55.6 in2.6 in
Wheelbase107.8 in109.3 in1.5 in
Ground clearance5.5 in——
Curb weight3,791 lb3,533 lb258 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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