Spec Sizes

Honda Civic Si vs Audi A3 Dimensions & Size Comparison

Comparing 2020 catalog dimensions. Honda Civic Si · Audi A3

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

Side view
  • Length177.3 in – 182.8 in
  • Height54.7 in – 55.5 in
  • Wheelbase106.3 in
  • Curb weight2,889 lb – 2,906 lb
Front / width
  • Width70.8 in – 70.9 in
  • Audi A3 width70.7 in

Which is bigger?

  • Length: Audi A3 is 4.5 in shorter (180.1 in vs 175.6 in)
  • Width: Audi A3 is 0.1 in narrower (70.8 in vs 70.7 in)
  • Height: Audi A3 is 0.6 in taller (55.1 in vs 55.7 in)
  • Wheelbase: Honda Civic Si has a 2.5 in longer wheelbase (106.3 in vs 103.8 in)
  • Curb weight: Audi A3 is 415 lb heavier (2,898 lb vs 3,313 lb)

Biggest size differences

  1. Curb weight: Audi A3 is 415 lb heavier (2,898 lb vs 3,313 lb)
  2. Length: Audi A3 is 4.5 in shorter (180.1 in vs 175.6 in)
  3. Wheelbase: Honda Civic Si has a 2.5 in longer wheelbase (106.3 in vs 103.8 in)
  4. Height: Audi A3 is 0.6 in taller (55.1 in vs 55.7 in)
  5. Width: Audi A3 is 0.1 in narrower (70.8 in vs 70.7 in)

Practical verdicts

  • Easier to fit in a short garageAudi A3 — Audi A3 is shorter by 4.5 in Check garage fit for Honda Civic Si · garage fit for Audi A3
  • Narrower for tight parkingAudi A3 — Audi A3 is narrower by 0.1 in
  • Smaller exterior footprintAudi A3 — Based on length × width (Audi A3)

Dimension comparison

SpecHonda Civic SiAudi A3Difference
Length180.1 in175.6 in4.5 in
Width70.8 in70.7 in0.1 in
Height55.1 in55.7 in0.6 in
Wheelbase106.3 in103.8 in2.5 in
Ground clearance—6.3 in—
Curb weight2,898 lb3,313 lb415 lb

Values use trim midpoints when a model year lists a range (e.g. length 177.3 in – 182.8 in).

Compare by year

Overlapping model years with dimension data.

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