Spec Sizes

Audi S4 vs BMW M3 Dimensions & Size Comparison

Comparing 2008 catalog dimensions. Audi S4 · BMW M3

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

Side view
  • Length180.0 in – 180.6 in
  • Height54.8 in – 55.7 in
  • Wheelbase104.3 in – 104.5 in
  • Curb weight3,869 lb – 4,211 lb
Front / width
  • Width70.0 in – 70.1 in
  • BMW M3 width70.2 in – 71.5 in

Which is bigger?

  • Length: Audi S4 is 0.8 in shorter (180.3 in vs 181.1 in)
  • Width: Audi S4 is 0.8 in narrower (70.0 in vs 70.8 in)
  • Height: essentially the same
  • Wheelbase: BMW M3 has a 4.3 in longer wheelbase (104.4 in vs 108.7 in)
  • Curb weight: Audi S4 is 116 lb heavier (4,040 lb vs 3,925 lb)

Biggest size differences

  1. Wheelbase: BMW M3 has a 4.3 in longer wheelbase (104.4 in vs 108.7 in)
  2. Curb weight: Audi S4 is 116 lb heavier (4,040 lb vs 3,925 lb)
  3. Width: Audi S4 is 0.8 in narrower (70.0 in vs 70.8 in)
  4. Length: Audi S4 is 0.8 in shorter (180.3 in vs 181.1 in)

Practical verdicts

  • Easier to fit in a short garageAudi S4 — Audi S4 is shorter by 0.8 in Check garage fit for Audi S4 · garage fit for BMW M3
  • Narrower for tight parkingAudi S4 — Audi S4 is narrower by 0.8 in
  • Smaller exterior footprintAudi S4 — Based on length × width (Audi S4)

Dimension comparison

SpecAudi S4BMW M3Difference
Length180.3 in181.1 in0.8 in
Width70.0 in70.8 in0.8 in
Height55.3 in55.3 in0.0 in
Wheelbase104.4 in108.7 in4.3 in
Curb weight4,040 lb3,925 lb116 lb

Values use trim midpoints when a model year lists a range (e.g. length 180.0 in – 180.6 in).

Compare by year

Overlapping model years with dimension data.

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