Spec Sizes

BMW M3 vs Audi A6 Dimensions & Size Comparison

Comparing 1999 catalog dimensions. BMW M3 · Audi A6

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

Side view
  • Length174.5 in
  • Height52.6 in – 52.8 in
  • Wheelbase106.3 in – 106.7 in
  • Curb weight3,175 lb – 3,494 lb
Front / width
  • Width67.3 in
  • Audi A6 width71.3 in

Which is bigger?

  • Length: BMW M3 is 17.5 in shorter (174.5 in vs 192.0 in)
  • Width: BMW M3 is 4.0 in narrower (67.3 in vs 71.3 in)
  • Height: Audi A6 is 5.0 in taller (52.7 in vs 57.7 in)
  • Wheelbase: Audi A6 has a 2.2 in longer wheelbase (106.5 in vs 108.7 in)
  • Curb weight: Audi A6 is 375 lb heavier (3,335 lb vs 3,709 lb)

Biggest size differences

  1. Curb weight: Audi A6 is 375 lb heavier (3,335 lb vs 3,709 lb)
  2. Length: BMW M3 is 17.5 in shorter (174.5 in vs 192.0 in)
  3. Height: Audi A6 is 5.0 in taller (52.7 in vs 57.7 in)
  4. Width: BMW M3 is 4.0 in narrower (67.3 in vs 71.3 in)
  5. Wheelbase: Audi A6 has a 2.2 in longer wheelbase (106.5 in vs 108.7 in)

Practical verdicts

  • Easier to fit in a short garageBMW M3 — BMW M3 is shorter by 17.5 in Check garage fit for BMW M3 · garage fit for Audi A6
  • Narrower for tight parkingBMW M3 — BMW M3 is narrower by 4.0 in
  • Smaller exterior footprintBMW M3 — Based on length × width (BMW M3)

Dimension comparison

SpecBMW M3Audi A6Difference
Length174.5 in192.0 in17.5 in
Width67.3 in71.3 in4.0 in
Height52.7 in57.7 in5.0 in
Wheelbase106.5 in108.7 in2.2 in
Curb weight3,335 lb3,709 lb375 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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