Spec Sizes

BMW M3 vs Audi A6 Dimensions & Size Comparison

Comparing 2004 catalog dimensions. BMW M3 · Audi A6

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

Side view
  • Length176.8 in
  • Height53.7 in – 54.0 in
  • Wheelbase107.5 in
  • Curb weight3,415 lb – 3,781 lb
Front / width
  • Width70.1 in
  • Audi A6 width76.1 in

Which is bigger?

  • Length: BMW M3 is 15.9 in shorter (176.8 in vs 192.7 in)
  • Width: BMW M3 is 6.0 in narrower (70.1 in vs 76.1 in)
  • Height: Audi A6 is 3.4 in taller (53.9 in vs 57.3 in)
  • Wheelbase: Audi A6 has a 1.2 in longer wheelbase (107.5 in vs 108.7 in)
  • Curb weight: Audi A6 is 200 lb heavier (3,598 lb vs 3,798 lb)

Biggest size differences

  1. Length: BMW M3 is 15.9 in shorter (176.8 in vs 192.7 in)
  2. Width: BMW M3 is 6.0 in narrower (70.1 in vs 76.1 in)
  3. Height: Audi A6 is 3.4 in taller (53.9 in vs 57.3 in)
  4. Curb weight: Audi A6 is 200 lb heavier (3,598 lb vs 3,798 lb)
  5. Wheelbase: Audi A6 has a 1.2 in longer wheelbase (107.5 in vs 108.7 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 15.9 in Check garage fit for BMW M3 · garage fit for Audi A6
  • Narrower for tight parkingBMW M3 — BMW M3 is narrower by 6.0 in
  • Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)

Dimension comparison

SpecBMW M3Audi A6Difference
Length176.8 in192.7 in15.9 in
Width70.1 in76.1 in6.0 in
Height53.9 in57.3 in3.4 in
Wheelbase107.5 in108.7 in1.2 in
Curb weight3,598 lb3,798 lb200 lb

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

Compare by year

Overlapping model years with dimension data.

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