Spec Sizes

Cadillac ATS vs Buick Regal Dimensions & Size Comparison

Comparing 2014 catalog dimensions. Cadillac ATS · Buick Regal

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

Side view
  • Length182.8 in
  • Height55.9 in – 56.4 in
  • Wheelbase109.3 in
  • Curb weight3,319 lb – 3,629 lb
Front / width
  • Width71.1 in
  • Buick Regal width73.1 in

Which is bigger?

  • Length: Cadillac ATS is 7.4 in shorter (182.8 in vs 190.2 in)
  • Width: Cadillac ATS is 2.0 in narrower (71.1 in vs 73.1 in)
  • Height: Buick Regal is 2.1 in taller (56.1 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 208 lb heavier (3,474 lb vs 3,682 lb)

Biggest size differences

  1. Curb weight: Buick Regal is 208 lb heavier (3,474 lb vs 3,682 lb)
  2. Length: Cadillac ATS is 7.4 in shorter (182.8 in vs 190.2 in)
  3. Height: Buick Regal is 2.1 in taller (56.1 in vs 58.2 in)
  4. Width: Cadillac ATS is 2.0 in narrower (71.1 in vs 73.1 in)
  5. 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 7.4 in Check garage fit for Cadillac ATS · garage fit for Buick Regal
  • Narrower for tight parkingCadillac ATS — Cadillac ATS is narrower by 2.0 in
  • Smaller exterior footprintCadillac ATS — Based on length × width (Cadillac ATS)

Dimension comparison

SpecCadillac ATSBuick RegalDifference
Length182.8 in190.2 in7.4 in
Width71.1 in73.1 in2.0 in
Height56.1 in58.2 in2.1 in
Wheelbase109.3 in107.8 in1.5 in
Ground clearance—5.5 in—
Curb weight3,474 lb3,682 lb208 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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