Spec Sizes

BMW M4 vs Audi S4 Dimensions & Size Comparison

Comparing 2019 catalog dimensions. BMW M4 · Audi S4

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

Side view
  • Length184.5 in – 184.6 in
  • Height54.4 in – 54.8 in
  • Wheelbase110.7 in
  • Curb weight3,620 lb – 4,070 lb
Front / width
  • Width73.6 in – 79.3 in
  • Audi S4 width72.5 in

Which is bigger?

  • Length: BMW M4 is 2.3 in shorter (184.6 in vs 186.8 in)
  • Width: Audi S4 is 3.9 in narrower (76.4 in vs 72.5 in)
  • Height: Audi S4 is 0.7 in taller (54.6 in vs 55.3 in)
  • Wheelbase: Audi S4 has a 0.5 in longer wheelbase (110.7 in vs 111.2 in)
  • Curb weight: Audi S4 is 13 lb heavier (3,845 lb vs 3,858 lb)

Biggest size differences

  1. Width: Audi S4 is 3.9 in narrower (76.4 in vs 72.5 in)
  2. Height: Audi S4 is 0.7 in taller (54.6 in vs 55.3 in)
  3. Length: BMW M4 is 2.3 in shorter (184.6 in vs 186.8 in)
  4. Wheelbase: Audi S4 has a 0.5 in longer wheelbase (110.7 in vs 111.2 in)
  5. Curb weight: Audi S4 is 13 lb heavier (3,845 lb vs 3,858 lb)

Practical verdicts

  • Easier to fit in a short garageBMW M4 — BMW M4 is shorter by 2.3 in Check garage fit for BMW M4 · garage fit for Audi S4
  • Narrower for tight parkingAudi S4 — Audi S4 is narrower by 3.9 in
  • Smaller exterior footprintAudi S4 — Based on length × width (Audi S4)

Dimension comparison

SpecBMW M4Audi S4Difference
Length184.6 in186.8 in2.3 in
Width76.4 in72.5 in3.9 in
Height54.6 in55.3 in0.7 in
Wheelbase110.7 in111.2 in0.5 in
Curb weight3,845 lb3,858 lb13 lb

Values use trim midpoints when a model year lists a range (e.g. length 184.5 in – 184.6 in).

Compare by year

Overlapping model years with dimension data.

Already own one of these cars?

Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.