Spec Sizes

Audi A4 vs BMW M3 Dimensions & Size Comparison

Comparing 2005 catalog dimensions. Audi A4 · BMW M3

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

Side view
  • Length179.0 in – 180.6 in
  • Height54.8 in – 57.2 in
  • Wheelbase104.3 in – 104.5 in
  • Curb weight3,252 lb – 4,013 lb
Front / width
  • Width69.5 in – 70.0 in
  • BMW M3 width70.1 in

Which is bigger?

  • Length: BMW M3 is 3.0 in shorter (179.8 in vs 176.8 in)
  • Width: Audi A4 is 0.3 in narrower (69.8 in vs 70.1 in)
  • Height: Audi A4 is 2.1 in taller (56.0 in vs 53.9 in)
  • Wheelbase: BMW M3 has a 3.1 in longer wheelbase (104.4 in vs 107.5 in)
  • Curb weight: Audi A4 is 35 lb heavier (3,633 lb vs 3,598 lb)

Biggest size differences

  1. Height: Audi A4 is 2.1 in taller (56.0 in vs 53.9 in)
  2. Wheelbase: BMW M3 has a 3.1 in longer wheelbase (104.4 in vs 107.5 in)
  3. Length: BMW M3 is 3.0 in shorter (179.8 in vs 176.8 in)
  4. Curb weight: Audi A4 is 35 lb heavier (3,633 lb vs 3,598 lb)
  5. Width: Audi A4 is 0.3 in narrower (69.8 in vs 70.1 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 3.0 in Check garage fit for Audi A4 · garage fit for BMW M3
  • Narrower for tight parkingAudi A4 — Audi A4 is narrower by 0.3 in
  • Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)

Dimension comparison

SpecAudi A4BMW M3Difference
Length179.8 in176.8 in3.0 in
Width69.8 in70.1 in0.3 in
Height56.0 in53.9 in2.1 in
Wheelbase104.4 in107.5 in3.1 in
Curb weight3,633 lb3,598 lb35 lb

Values use trim midpoints when a model year lists a range (e.g. length 179.0 in – 180.6 in).

Compare by year

Overlapping model years with dimension data.

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