Spec Sizes

Acura ILX vs Honda Civic Si Dimensions & Size Comparison

Comparing 2017 vs 2022 catalog dimensions. Acura ILX · Honda Civic Si

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

Side view
  • Length181.9 in
  • Height55.6 in
  • Wheelbase105.1 in
  • Ground clearance5.3 in
  • Curb weight3,093 lb – 3,137 lb
Front / width
  • Width70.6 in
  • Honda Civic Si width70.9 in

Which is bigger?

  • Length: Acura ILX is 2.1 in shorter (181.9 in vs 184.0 in)
  • Width: Acura ILX is 0.3 in narrower (70.6 in vs 70.9 in)
  • Height: Acura ILX is 0.1 in taller (55.6 in vs 55.5 in)
  • Wheelbase: Honda Civic Si has a 2.6 in longer wheelbase (105.1 in vs 107.7 in)
  • Curb weight: Acura ILX is 159 lb heavier (3,115 lb vs 2,957 lb)

Biggest size differences

  1. Curb weight: Acura ILX is 159 lb heavier (3,115 lb vs 2,957 lb)
  2. Wheelbase: Honda Civic Si has a 2.6 in longer wheelbase (105.1 in vs 107.7 in)
  3. Length: Acura ILX is 2.1 in shorter (181.9 in vs 184.0 in)
  4. Width: Acura ILX is 0.3 in narrower (70.6 in vs 70.9 in)
  5. Height: Acura ILX is 0.1 in taller (55.6 in vs 55.5 in)

Practical verdicts

  • Easier to fit in a short garageAcura ILX — Acura ILX is shorter by 2.1 in Check garage fit for Acura ILX · garage fit for Honda Civic Si
  • Narrower for tight parkingAcura ILX — Acura ILX is narrower by 0.3 in
  • Smaller exterior footprintAcura ILX — Based on length × width (Acura ILX)

Dimension comparison

SpecAcura ILXHonda Civic SiDifference
Length181.9 in184.0 in2.1 in
Width70.6 in70.9 in0.3 in
Height55.6 in55.5 in0.1 in
Wheelbase105.1 in107.7 in2.6 in
Ground clearance5.3 in——
Curb weight3,115 lb2,957 lb159 lb

Values use trim midpoints when a model year lists a range.

Compare by year

Overlapping model years with dimension data.

Already own one of these cars?

Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.