Spec Sizes

BMW M3 vs Audi A4 Dimensions & Size Comparison

Comparing 2003 catalog dimensions. BMW M3 · Audi A4

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

Side view
  • Length176.8 in
  • Height53.7 in – 54.0 in
  • Wheelbase107.5 in
  • Curb weight3,415 lb – 3,781 lb
Front / width
  • Width70.1 in
  • Audi A4 width69.5 in – 70.0 in

Which is bigger?

  • Length: BMW M3 is 2.7 in shorter (176.8 in vs 179.5 in)
  • Width: Audi A4 is 0.3 in narrower (70.1 in vs 69.8 in)
  • Height: Audi A4 is 2.1 in taller (53.9 in vs 56.0 in)
  • Wheelbase: BMW M3 has a 3.1 in longer wheelbase (107.5 in vs 104.4 in)
  • Curb weight: BMW M3 is 65 lb heavier (3,598 lb vs 3,533 lb)

Biggest size differences

  1. Height: Audi A4 is 2.1 in taller (53.9 in vs 56.0 in)
  2. Wheelbase: BMW M3 has a 3.1 in longer wheelbase (107.5 in vs 104.4 in)
  3. Curb weight: BMW M3 is 65 lb heavier (3,598 lb vs 3,533 lb)
  4. Length: BMW M3 is 2.7 in shorter (176.8 in vs 179.5 in)
  5. Width: Audi A4 is 0.3 in narrower (70.1 in vs 69.8 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 2.7 in Check garage fit for BMW M3 · garage fit for Audi A4
  • Narrower for tight parkingAudi A4 — Audi A4 is narrower by 0.3 in
  • Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)

Dimension comparison

SpecBMW M3Audi A4Difference
Length176.8 in179.5 in2.7 in
Width70.1 in69.8 in0.3 in
Height53.9 in56.0 in2.1 in
Wheelbase107.5 in104.4 in3.1 in
Curb weight3,598 lb3,533 lb65 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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