Spec Sizes

Cadillac ATS vs Buick Regal Dimensions & Size Comparison

Comparing 2019 vs 2017 catalog dimensions. Cadillac ATS · Buick Regal

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

Side view
  • Length183.6 in
  • Height54.8 in – 55.3 in
  • Wheelbase109.3 in
  • Curb weight3,418 lb – 3,693 lb
Front / width
  • Width72.5 in
  • Buick Regal width73.1 in

Which is bigger?

  • Length: Cadillac ATS is 6.6 in shorter (183.6 in vs 190.2 in)
  • Width: Cadillac ATS is 0.6 in narrower (72.5 in vs 73.1 in)
  • Height: Buick Regal is 3.2 in taller (55.0 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 235 lb heavier (3,556 lb vs 3,791 lb)

Biggest size differences

  1. Curb weight: Buick Regal is 235 lb heavier (3,556 lb vs 3,791 lb)
  2. Height: Buick Regal is 3.2 in taller (55.0 in vs 58.2 in)
  3. Length: Cadillac ATS is 6.6 in shorter (183.6 in vs 190.2 in)
  4. Wheelbase: Cadillac ATS has a 1.5 in longer wheelbase (109.3 in vs 107.8 in)
  5. Width: Cadillac ATS is 0.6 in narrower (72.5 in vs 73.1 in)

Practical verdicts

  • Easier to fit in a short garageCadillac ATS — Cadillac ATS is shorter by 6.6 in Check garage fit for Cadillac ATS · garage fit for Buick Regal
  • Narrower for tight parkingCadillac ATS — Cadillac ATS is narrower by 0.6 in
  • Smaller exterior footprintCadillac ATS — Based on length × width (Cadillac ATS)

Dimension comparison

SpecCadillac ATSBuick RegalDifference
Length183.6 in190.2 in6.6 in
Width72.5 in73.1 in0.6 in
Height55.0 in58.2 in3.2 in
Wheelbase109.3 in107.8 in1.5 in
Ground clearance—5.5 in—
Curb weight3,556 lb3,791 lb235 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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