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Size comparison · drawn to scale

BMW M3 (G80/G81) vs BMW M4 (G82/G83): size comparison

  • Length About the same length
  • Width M3 (G80/G81) 16 mm0.6 in wider
  • Height M3 (G80/G81) 40 mm2 in taller
  • Boot M3 (G80/G81) 40 L1.4 cu ft more

Car 1 blue, solid outline

M3 (G80/G81) BMW · 2020–present · Sedan M3 (G80/G81) 4,794 × 1,903 × 1,433 mm15 ft 9 in × 6 ft 3 in × 4 ft 8 in Change

Car 2 coral, dashed outline

M4 (G82/G83) BMW · 2020–present · Coupé M4 (G82/G83) 4,794 × 1,887 × 1,393 mm15 ft 9 in × 6 ft 2 in × 4 ft 7 in Change
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  • Car 1, blue, solid outline: M3 (G80/G81)
  • Car 2, coral, dashed outline: M4 (G82/G83)
0 m1 m2 m3 m4 m5 m6 m1 m0 ft1 ft2 ft3 ft4 ft5 ft6 ft7 ft8 ft9 ft10 ft11 ft12 ft13 ft14 ft15 ft16 ft17 ft18 ft19 ft20 ft1 ft2 ft3 ft4 ftWheelbase 2,857 mmWheelbase 9 ft 4 inLength 4,794 mmLength 15 ft 9 in1,433 mm4 ft 8 inWheelbase 2,857 mmWheelbase 9 ft 4 inLength 4,794 mmLength 15 ft 9 in1,393 mm4 ft 7 in

Scale about 1:22 on a desktop screen · grid 500 mm1 ft · in Overlay both cars start at the front bumper Side view: dashed lines mark the axles

Dimensions and difference

The M3 (G80/G81) is the same length, 16 mm0.6 in wider and 40 mm2 in taller than the M4 (G82/G83). Its wheelbase is identical.

DimensionM3 (G80/G81)M4 (G82/G83)Difference, car 1 vs car 2
Length4,794 mm15 ft 9 in15 ft 9 in4,794 mm4,794 mm15 ft 9 in15 ft 9 in4,794 mm Same
Width1,903 mm6 ft 3 in6 ft 3 in1,903 mm1,887 mm6 ft 2 in6 ft 2 in1,887 mm +16 mm+0.6 in +0.8%
Height1,433 mm4 ft 8 in4 ft 8 in1,433 mm1,393 mm4 ft 7 in4 ft 7 in1,393 mm +40 mm+2 in +2.9%
Wheelbase2,857 mm9 ft 4 in9 ft 4 in2,857 mm2,857 mm9 ft 4 in9 ft 4 in2,857 mm Same
Footprint9.12 m²98.2 sq ft98.2 sq ft9.12 m²9.05 m²97.4 sq ft97.4 sq ft9.05 m² +0.08 m²+0.8 sq ft +0.8%
Boot480 L17.0 cu ft17.0 cu ft480 L440 L15.5 cu ft15.5 cu ft440 L +40 L+1.4 cu ft +9.1%
Kerb weight1,705–1,865 kg3,759–4,112 lb3,759–4,112 lb1,705–1,865 kg1,625–1,953 kg3,583–4,306 lb3,583–4,306 lb1,625–1,953 kg +80 kg+176 lb +4.9%

Width without mirrors. Figures come from the catalog version pages; the drawing uses the same numbers. Body outlines are generic for the body type — proportions are exact, styling is not. Weight difference compares the lightest versions.

Garage and parking

A typical single garage is about 5.5 × 3.0 m18 ft 1 in × 9 ft 10 in inside; a parking bay about 5.0 × 2.5 m16 ft 5 in × 8 ft 2 in. Room to open a door: about 600 mm2 ft each side.

M3 (G80/G81)

Single garage
Tight 706 mm2 ft 4 in to spare in length, 549 mm1 ft 10 in each side
Parking bay
Tight 206 mm8 in to spare in length, 299 mm1 ft 0 in each side

M4 (G82/G83)

Single garage
Tight 706 mm2 ft 4 in to spare in length, 557 mm1 ft 10 in each side
Parking bay
Tight 206 mm8 in to spare in length, 307 mm1 ft 0 in each side

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Frequently asked questions

Which is bigger, the BMW M3 (G80/G81) or the BMW M4 (G82/G83)?

They are practically the same size. The M3 (G80/G81) is the same length, 16 mm wider and 40 mm taller than the M4 (G82/G83). Its wheelbase is identical.

Will the BMW M3 (G80/G81) and the BMW M4 (G82/G83) fit in a standard garage?

In a typical single garage of 5.5 × 3.0 m inside: The BMW M3 (G80/G81) fits, but it is tight to get out (706 mm to spare in length, 549 mm each side). The BMW M4 (G82/G83) fits, but it is tight to get out (706 mm to spare in length, 557 mm each side). Widths are without mirrors; check your own garage with our garage checker.

Which has the bigger boot?

The BMW M3 (G80/G81): 480 L against 440 L in the BMW M4 (G82/G83) (seats up, as quoted by the maker).

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