Spec Sizes

Audi A4 vs BMW M3 Dimensions & Size Comparison

Comparing 2008 catalog dimensions. Audi A4 · BMW M3

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

Side view
  • Length180.6 in – 181.0 in
  • Height56.2 in
  • Wheelbase104.3 in
  • Curb weight3,428 lb – 4,079 lb
Front / width
  • Width69.8 in – 70.0 in
  • BMW M3 width70.2 in – 71.5 in

Which is bigger?

  • Length: Audi A4 is 0.3 in shorter (180.8 in vs 181.1 in)
  • Width: Audi A4 is 0.9 in narrower (69.9 in vs 70.8 in)
  • Height: Audi A4 is 1.0 in taller (56.2 in vs 55.3 in)
  • Wheelbase: BMW M3 has a 4.4 in longer wheelbase (104.3 in vs 108.7 in)
  • Curb weight: BMW M3 is 171 lb heavier (3,754 lb vs 3,925 lb)

Biggest size differences

  1. Curb weight: BMW M3 is 171 lb heavier (3,754 lb vs 3,925 lb)
  2. Wheelbase: BMW M3 has a 4.4 in longer wheelbase (104.3 in vs 108.7 in)
  3. Height: Audi A4 is 1.0 in taller (56.2 in vs 55.3 in)
  4. Width: Audi A4 is 0.9 in narrower (69.9 in vs 70.8 in)
  5. Length: Audi A4 is 0.3 in shorter (180.8 in vs 181.1 in)

Practical verdicts

  • Easier to fit in a short garageAudi A4 — Audi A4 is shorter by 0.3 in Check garage fit for Audi A4 · garage fit for BMW M3
  • Narrower for tight parkingAudi A4 — Audi A4 is narrower by 0.9 in
  • Smaller exterior footprintAudi A4 — Based on length × width (Audi A4)

Dimension comparison

SpecAudi A4BMW M3Difference
Length180.8 in181.1 in0.3 in
Width69.9 in70.8 in0.9 in
Height56.2 in55.3 in1.0 in
Wheelbase104.3 in108.7 in4.4 in
Curb weight3,754 lb3,925 lb171 lb

Values use trim midpoints when a model year lists a range (e.g. length 180.6 in – 181.0 in).

Compare by year

Overlapping model years with dimension data.

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