Spec Sizes

Honda Civic Si vs Mazda Mazda3 Dimensions & Size Comparison

Comparing 2022 catalog dimensions. Honda Civic Si · Mazda Mazda3

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

Side view
  • Length184.0 in
  • Height55.5 in
  • Wheelbase107.7 in
  • Curb weight2,952 lb – 2,961 lb
Front / width
  • Width70.9 in
  • Mazda Mazda3 width70.7 in

Which is bigger?

  • Length: Mazda Mazda3 is 4.4 in shorter (184.0 in vs 179.6 in)
  • Width: Mazda Mazda3 is 0.2 in narrower (70.9 in vs 70.7 in)
  • Height: Mazda Mazda3 is 1.3 in taller (55.5 in vs 56.8 in)
  • Wheelbase: Honda Civic Si has a 0.4 in longer wheelbase (107.7 in vs 107.3 in)
  • Curb weight: Mazda Mazda3 is 227 lb heavier (2,957 lb vs 3,184 lb)

Biggest size differences

  1. Curb weight: Mazda Mazda3 is 227 lb heavier (2,957 lb vs 3,184 lb)
  2. Length: Mazda Mazda3 is 4.4 in shorter (184.0 in vs 179.6 in)
  3. Height: Mazda Mazda3 is 1.3 in taller (55.5 in vs 56.8 in)
  4. Wheelbase: Honda Civic Si has a 0.4 in longer wheelbase (107.7 in vs 107.3 in)
  5. Width: Mazda Mazda3 is 0.2 in narrower (70.9 in vs 70.7 in)

Practical verdicts

  • Easier to fit in a short garageMazda Mazda3 — Mazda Mazda3 is shorter by 4.4 in Check garage fit for Honda Civic Si · garage fit for Mazda Mazda3
  • Narrower for tight parkingMazda Mazda3 — Mazda Mazda3 is narrower by 0.2 in
  • Smaller exterior footprintMazda Mazda3 — Based on length × width (Mazda Mazda3)

Dimension comparison

SpecHonda Civic SiMazda Mazda3Difference
Length184.0 in179.6 in4.4 in
Width70.9 in70.7 in0.2 in
Height55.5 in56.8 in1.3 in
Wheelbase107.7 in107.3 in0.4 in
Ground clearance—5.5 in—
Curb weight2,957 lb3,184 lb227 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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