Spec Sizes

Audi S4 vs BMW M3 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. Audi S4 · BMW M3

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

Side view
  • Length187.5 in
  • Height56.2 in
  • Wheelbase111.0 in
  • Ground clearance4.5 in
  • Curb weight3,847 lb
Front / width
  • Width72.7 in
  • BMW M3 width74.3 in

Which is bigger?

  • Length: Audi S4 is 1.6 in shorter (187.5 in vs 189.1 in)
  • Width: Audi S4 is 1.6 in narrower (72.7 in vs 74.3 in)
  • Height: BMW M3 is 0.2 in taller (56.2 in vs 56.4 in)
  • Wheelbase: BMW M3 has a 1.5 in longer wheelbase (111.0 in vs 112.5 in)
  • Curb weight: BMW M3 is 18 lb heavier (3,847 lb vs 3,865 lb)

Biggest size differences

  1. Width: Audi S4 is 1.6 in narrower (72.7 in vs 74.3 in)
  2. Wheelbase: BMW M3 has a 1.5 in longer wheelbase (111.0 in vs 112.5 in)
  3. Length: Audi S4 is 1.6 in shorter (187.5 in vs 189.1 in)
  4. Curb weight: BMW M3 is 18 lb heavier (3,847 lb vs 3,865 lb)
  5. Height: BMW M3 is 0.2 in taller (56.2 in vs 56.4 in)

Practical verdicts

  • Easier to fit in a short garageAudi S4 — Audi S4 is shorter by 1.6 in Check garage fit for Audi S4 · garage fit for BMW M3
  • Narrower for tight parkingAudi S4 — Audi S4 is narrower by 1.6 in
  • Smaller exterior footprintAudi S4 — Based on length × width (Audi S4)

Dimension comparison

SpecAudi S4BMW M3Difference
Length187.5 in189.1 in1.6 in
Width72.7 in74.3 in1.6 in
Height56.2 in56.4 in0.2 in
Wheelbase111.0 in112.5 in1.5 in
Ground clearance4.5 in——
Curb weight3,847 lb3,865 lb18 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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