Spec Sizes

BMW i4 vs BMW M3 Dimensions & Size Comparison

Comparing 2023 catalog dimensions. BMW i4 · BMW M3

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

Side view
  • Length188.5 in
  • Height57.0 in
  • Wheelbase112.4 in
  • Curb weight4,680 lb – 5,018 lb
Front / width
  • Width72.9 in
  • BMW M3 width74.3 in

Which is bigger?

  • Length: BMW i4 is 0.6 in shorter (188.5 in vs 189.1 in)
  • Width: BMW i4 is 1.4 in narrower (72.9 in vs 74.3 in)
  • Height: BMW i4 is 0.5 in taller (57.0 in vs 56.5 in)
  • Wheelbase: BMW M3 has a 0.1 in longer wheelbase (112.4 in vs 112.5 in)
  • Curb weight: BMW i4 is 934 lb heavier (4,849 lb vs 3,915 lb)

Biggest size differences

  1. Curb weight: BMW i4 is 934 lb heavier (4,849 lb vs 3,915 lb)
  2. Width: BMW i4 is 1.4 in narrower (72.9 in vs 74.3 in)
  3. Height: BMW i4 is 0.5 in taller (57.0 in vs 56.5 in)
  4. Length: BMW i4 is 0.6 in shorter (188.5 in vs 189.1 in)
  5. Wheelbase: BMW M3 has a 0.1 in longer wheelbase (112.4 in vs 112.5 in)

Practical verdicts

  • Easier to fit in a short garageBMW i4 — BMW i4 is shorter by 0.6 in Check garage fit for BMW i4 · garage fit for BMW M3
  • Narrower for tight parkingBMW i4 — BMW i4 is narrower by 1.4 in
  • Smaller exterior footprintBMW i4 — Based on length × width (BMW i4)

Dimension comparison

SpecBMW i4BMW M3Difference
Length188.5 in189.1 in0.6 in
Width72.9 in74.3 in1.4 in
Height57.0 in56.5 in0.5 in
Wheelbase112.4 in112.5 in0.1 in
Curb weight4,849 lb3,915 lb934 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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