Spec Sizes

Cadillac CT5 vs BMW M3 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. Cadillac CT5 · BMW M3

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

Side view
  • Length193.8 in
  • Height57.2 in
  • Wheelbase116.0 in
  • Curb weight3,659 lb – 4,144 lb
Front / width
  • Width74.1 in
  • BMW M3 width74.3 in

Which is bigger?

  • Length: BMW M3 is 4.7 in shorter (193.8 in vs 189.1 in)
  • Width: Cadillac CT5 is 0.2 in narrower (74.1 in vs 74.3 in)
  • Height: Cadillac CT5 is 0.8 in taller (57.2 in vs 56.4 in)
  • Wheelbase: Cadillac CT5 has a 3.5 in longer wheelbase (116.0 in vs 112.5 in)
  • Curb weight: Cadillac CT5 is 37 lb heavier (3,902 lb vs 3,865 lb)

Biggest size differences

  1. Wheelbase: Cadillac CT5 has a 3.5 in longer wheelbase (116.0 in vs 112.5 in)
  2. Length: BMW M3 is 4.7 in shorter (193.8 in vs 189.1 in)
  3. Height: Cadillac CT5 is 0.8 in taller (57.2 in vs 56.4 in)
  4. Curb weight: Cadillac CT5 is 37 lb heavier (3,902 lb vs 3,865 lb)
  5. Width: Cadillac CT5 is 0.2 in narrower (74.1 in vs 74.3 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 4.7 in Check garage fit for Cadillac CT5 · garage fit for BMW M3
  • Narrower for tight parkingCadillac CT5 — Cadillac CT5 is narrower by 0.2 in
  • Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)

Dimension comparison

SpecCadillac CT5BMW M3Difference
Length193.8 in189.1 in4.7 in
Width74.1 in74.3 in0.2 in
Height57.2 in56.4 in0.8 in
Wheelbase116.0 in112.5 in3.5 in
Curb weight3,902 lb3,865 lb37 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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