Spec Sizes

BMW i8 vs Cadillac ATS Dimensions & Size Comparison

Comparing 2020 vs 2019 catalog dimensions. BMW i8 · Cadillac ATS

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

Side view
  • Length184.9 in
  • Height50.7 in – 50.8 in
  • Wheelbase110.2 in
  • Curb weight3,501 lb – 3,671 lb
Front / width
  • Width76.5 in
  • Cadillac ATS width72.5 in

Which is bigger?

  • Length: Cadillac ATS is 1.3 in shorter (184.9 in vs 183.6 in)
  • Width: Cadillac ATS is 4.0 in narrower (76.5 in vs 72.5 in)
  • Height: Cadillac ATS is 4.3 in taller (50.8 in vs 55.0 in)
  • Wheelbase: BMW i8 has a 0.9 in longer wheelbase (110.2 in vs 109.3 in)
  • Curb weight: BMW i8 is 31 lb heavier (3,586 lb vs 3,556 lb)

Biggest size differences

  1. Height: Cadillac ATS is 4.3 in taller (50.8 in vs 55.0 in)
  2. Width: Cadillac ATS is 4.0 in narrower (76.5 in vs 72.5 in)
  3. Curb weight: BMW i8 is 31 lb heavier (3,586 lb vs 3,556 lb)
  4. Wheelbase: BMW i8 has a 0.9 in longer wheelbase (110.2 in vs 109.3 in)
  5. Length: Cadillac ATS is 1.3 in shorter (184.9 in vs 183.6 in)

Practical verdicts

  • Easier to fit in a short garageCadillac ATS — Cadillac ATS is shorter by 1.3 in Check garage fit for BMW i8 · garage fit for Cadillac ATS
  • Narrower for tight parkingCadillac ATS — Cadillac ATS is narrower by 4.0 in
  • Smaller exterior footprintCadillac ATS — Based on length × width (Cadillac ATS)

Dimension comparison

SpecBMW i8Cadillac ATSDifference
Length184.9 in183.6 in1.3 in
Width76.5 in72.5 in4.0 in
Height50.8 in55.0 in4.3 in
Wheelbase110.2 in109.3 in0.9 in
Curb weight3,586 lb3,556 lb31 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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