Spec Sizes

BMW M4 vs BMW M8 Dimensions & Size Comparison

Comparing 2020 catalog dimensions. BMW M4 · BMW M8

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

Side view
  • Length184.5 in
  • Height54.4 in – 54.8 in
  • Wheelbase110.7 in
  • Curb weight3,620 lb – 4,110 lb
Front / width
  • Width73.6 in
  • BMW M8 width74.9 in

Which is bigger?

  • Length: BMW M4 is 6.7 in shorter (184.5 in vs 191.2 in)
  • Width: BMW M4 is 1.3 in narrower (73.6 in vs 74.9 in)
  • Height: BMW M4 is 1.6 in taller (54.6 in vs 53.0 in)
  • Wheelbase: BMW M8 has a 0.4 in longer wheelbase (110.7 in vs 111.1 in)
  • Curb weight: BMW M8 is 563 lb heavier (3,865 lb vs 4,428 lb)

Biggest size differences

  1. Curb weight: BMW M8 is 563 lb heavier (3,865 lb vs 4,428 lb)
  2. Length: BMW M4 is 6.7 in shorter (184.5 in vs 191.2 in)
  3. Height: BMW M4 is 1.6 in taller (54.6 in vs 53.0 in)
  4. Width: BMW M4 is 1.3 in narrower (73.6 in vs 74.9 in)
  5. Wheelbase: BMW M8 has a 0.4 in longer wheelbase (110.7 in vs 111.1 in)

Practical verdicts

  • Easier to fit in a short garageBMW M4 — BMW M4 is shorter by 6.7 in Check garage fit for BMW M4 · garage fit for BMW M8
  • Narrower for tight parkingBMW M4 — BMW M4 is narrower by 1.3 in
  • Smaller exterior footprintBMW M4 — Based on length × width (BMW M4)

Dimension comparison

SpecBMW M4BMW M8Difference
Length184.5 in191.2 in6.7 in
Width73.6 in74.9 in1.3 in
Height54.6 in53.0 in1.6 in
Wheelbase110.7 in111.1 in0.4 in
Ground clearance—5.0 in—
Curb weight3,865 lb4,428 lb563 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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