Spec Sizes

BMW M3 vs Audi A4 Dimensions & Size Comparison

Comparing 2015 catalog dimensions. BMW M3 · Audi A4

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 A4 width71.9 in

Which is bigger?

  • Length: BMW M3 is 0.6 in shorter (184.5 in vs 185.1 in)
  • Width: Audi A4 is 2.0 in narrower (73.9 in vs 71.9 in)
  • Height: Audi A4 is 0.1 in taller (56.1 in vs 56.2 in)
  • Wheelbase: BMW M3 has a 0.1 in longer wheelbase (110.7 in vs 110.6 in)
  • Ground clearance: essentially the same
  • Curb weight: Audi A4 is 32 lb heavier (3,540 lb vs 3,572 lb)

Biggest size differences

  1. Width: Audi A4 is 2.0 in narrower (73.9 in vs 71.9 in)
  2. Curb weight: Audi A4 is 32 lb heavier (3,540 lb vs 3,572 lb)
  3. Length: BMW M3 is 0.6 in shorter (184.5 in vs 185.1 in)
  4. Height: Audi A4 is 0.1 in taller (56.1 in vs 56.2 in)
  5. Wheelbase: BMW M3 has a 0.1 in longer wheelbase (110.7 in vs 110.6 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 0.6 in Check garage fit for BMW M3 · garage fit for Audi A4
  • Narrower for tight parkingAudi A4 — Audi A4 is narrower by 2.0 in
  • Smaller exterior footprintAudi A4 — Based on length × width (Audi A4)

Dimension comparison

SpecBMW M3Audi A4Difference
Length184.5 in185.1 in0.6 in
Width73.9 in71.9 in2.0 in
Height56.1 in56.2 in0.1 in
Wheelbase110.7 in110.6 in0.1 in
Ground clearance4.7 in4.7 in0.0 in
Curb weight3,540 lb3,572 lb32 lb

Values use trim midpoints when a model year lists a range.

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.