Spec Sizes

BMW i8 vs BMW M4 Dimensions & Size Comparison

Comparing 2017 catalog dimensions. BMW i8 · BMW M4

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

Side view
  • Length184.9 in
  • Height50.8 in
  • Wheelbase110.2 in
  • Ground clearance4.6 in
  • Curb weight3,455 lb
Front / width
  • Width76.5 in
  • BMW M4 width73.6 in

Which is bigger?

  • Length: BMW M4 is 0.4 in shorter (184.9 in vs 184.5 in)
  • Width: BMW M4 is 2.9 in narrower (76.5 in vs 73.6 in)
  • Height: BMW M4 is 3.7 in taller (50.8 in vs 54.5 in)
  • Wheelbase: BMW M4 has a 0.5 in longer wheelbase (110.2 in vs 110.7 in)
  • Ground clearance: BMW M4 has 0.1 in more ground clearance (4.6 in vs 4.7 in)
  • Curb weight: BMW M4 is 338 lb heavier (3,455 lb vs 3,793 lb)

Biggest size differences

  1. Curb weight: BMW M4 is 338 lb heavier (3,455 lb vs 3,793 lb)
  2. Height: BMW M4 is 3.7 in taller (50.8 in vs 54.5 in)
  3. Width: BMW M4 is 2.9 in narrower (76.5 in vs 73.6 in)
  4. Ground clearance: BMW M4 has 0.1 in more ground clearance (4.6 in vs 4.7 in)
  5. Wheelbase: BMW M4 has a 0.5 in longer wheelbase (110.2 in vs 110.7 in)

Practical verdicts

  • Easier to fit in a short garageBMW M4 — BMW M4 is shorter by 0.4 in Check garage fit for BMW i8 · garage fit for BMW M4
  • Narrower for tight parkingBMW M4 — BMW M4 is narrower by 2.9 in
  • More ground clearanceBMW M4 — BMW M4 has 0.1 in more clearance
  • Smaller exterior footprintBMW M4 — Based on length × width (BMW M4)

Dimension comparison

SpecBMW i8BMW M4Difference
Length184.9 in184.5 in0.4 in
Width76.5 in73.6 in2.9 in
Height50.8 in54.5 in3.7 in
Wheelbase110.2 in110.7 in0.5 in
Ground clearance4.6 in4.7 in0.1 in
Curb weight3,455 lb3,793 lb338 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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