Spec Sizes

Cadillac CT4 vs Honda Civic Si Dimensions & Size Comparison

Comparing 2023 vs 2022 catalog dimensions. Cadillac CT4 · Honda Civic Si

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

Side view
  • Length187.2 in
  • Height56.0 in
  • Wheelbase109.3 in
  • Curb weight3,422 lb – 3,622 lb
Front / width
  • Width71.4 in
  • Honda Civic Si width70.9 in

Which is bigger?

  • Length: Honda Civic Si is 3.2 in shorter (187.2 in vs 184.0 in)
  • Width: Honda Civic Si is 0.5 in narrower (71.4 in vs 70.9 in)
  • Height: Cadillac CT4 is 0.5 in taller (56.0 in vs 55.5 in)
  • Wheelbase: Cadillac CT4 has a 1.6 in longer wheelbase (109.3 in vs 107.7 in)
  • Curb weight: Cadillac CT4 is 566 lb heavier (3,522 lb vs 2,957 lb)

Biggest size differences

  1. Curb weight: Cadillac CT4 is 566 lb heavier (3,522 lb vs 2,957 lb)
  2. Length: Honda Civic Si is 3.2 in shorter (187.2 in vs 184.0 in)
  3. Wheelbase: Cadillac CT4 has a 1.6 in longer wheelbase (109.3 in vs 107.7 in)
  4. Height: Cadillac CT4 is 0.5 in taller (56.0 in vs 55.5 in)
  5. Width: Honda Civic Si is 0.5 in narrower (71.4 in vs 70.9 in)

Practical verdicts

  • Easier to fit in a short garageHonda Civic Si — Honda Civic Si is shorter by 3.2 in Check garage fit for Cadillac CT4 · garage fit for Honda Civic Si
  • Narrower for tight parkingHonda Civic Si — Honda Civic Si is narrower by 0.5 in
  • Smaller exterior footprintHonda Civic Si — Based on length × width (Honda Civic Si)

Dimension comparison

SpecCadillac CT4Honda Civic SiDifference
Length187.2 in184.0 in3.2 in
Width71.4 in70.9 in0.5 in
Height56.0 in55.5 in0.5 in
Wheelbase109.3 in107.7 in1.6 in
Curb weight3,522 lb2,957 lb566 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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