Spec Sizes

BMW M3 vs Audi S4 Dimensions & Size Comparison

Comparing 2015 catalog dimensions. BMW M3 · Audi S4

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

Side view
  • Length184.5 in
  • Height56.1 in
  • Wheelbase110.7 in
  • Ground clearance4.7 in
  • Curb weight3,540 lb
Front / width
  • Width73.9 in
  • Audi S4 width71.9 in

Which is bigger?

  • Length: BMW M3 is 1.2 in shorter (184.5 in vs 185.7 in)
  • Width: Audi S4 is 2.0 in narrower (73.9 in vs 71.9 in)
  • Height: BMW M3 is 0.7 in taller (56.1 in vs 55.4 in)
  • Wheelbase: essentially the same
  • Ground clearance: essentially the same
  • Curb weight: Audi S4 is 318 lb heavier (3,540 lb vs 3,858 lb)

Biggest size differences

  1. Curb weight: Audi S4 is 318 lb heavier (3,540 lb vs 3,858 lb)
  2. Width: Audi S4 is 2.0 in narrower (73.9 in vs 71.9 in)
  3. Height: BMW M3 is 0.7 in taller (56.1 in vs 55.4 in)
  4. Length: BMW M3 is 1.2 in shorter (184.5 in vs 185.7 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 1.2 in Check garage fit for BMW M3 · garage fit for Audi S4
  • Narrower for tight parkingAudi S4 — Audi S4 is narrower by 2.0 in
  • Smaller exterior footprintAudi S4 — Based on length × width (Audi S4)

Dimension comparison

SpecBMW M3Audi S4Difference
Length184.5 in185.7 in1.2 in
Width73.9 in71.9 in2.0 in
Height56.1 in55.4 in0.7 in
Wheelbase110.7 in110.7 in0.0 in
Ground clearance4.7 in4.7 in0.0 in
Curb weight3,540 lb3,858 lb318 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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