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Size comparison · drawn to scale

Mercedes-Benz C-Class W206 vs BMW 3 Series G20: size comparison

  • Length C-Class W206 42 mm2 in longer
  • Width About the same width
  • Height About the same height
  • Boot 3 Series G20 25 L0.9 cu ft more

Car 1 blue, solid outline

C-Class W206 Mercedes-Benz · 2021–present · Sedan C-Class W206 4,751 × 1,820 × 1,438 mm15 ft 7 in × 6 ft 0 in × 4 ft 9 in Change

Car 2 coral, dashed outline

3 Series G20 BMW · 2018–present · Sedan 3 Series G20 4,709 × 1,827 × 1,442 mm15 ft 5 in × 6 ft 0 in × 4 ft 9 in Change
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  • Car 1, blue, solid outline: C-Class W206
  • Car 2, coral, dashed outline: 3 Series G20
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 2,865 mmWheelbase 9 ft 5 inLength 4,751 mmLength 15 ft 7 in1,438 mm4 ft 9 inWheelbase 2,851 mmWheelbase 9 ft 4 inLength 4,709 mmLength 15 ft 5 in1,442 mm4 ft 9 in

Scale about 1:21 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 C-Class W206 is 42 mm2 in longer, 7 mm0.3 in narrower and 4 mm0.2 in lower than the 3 Series G20. Its wheelbase is 14 mm0.6 in longer.

DimensionC-Class W2063 Series G20Difference, car 1 vs car 2
Length4,751 mm15 ft 7 in15 ft 7 in4,751 mm4,709 mm15 ft 5 in15 ft 5 in4,709 mm +42 mm+2 in +0.9%
Width1,820 mm6 ft 0 in6 ft 0 in1,820 mm1,827 mm6 ft 0 in6 ft 0 in1,827 mm −7 mm−0.3 in −0.4%
Height1,438 mm4 ft 9 in4 ft 9 in1,438 mm1,442 mm4 ft 9 in4 ft 9 in1,442 mm −4 mm−0.2 in −0.3%
Wheelbase2,865 mm9 ft 5 in9 ft 5 in2,865 mm2,851 mm9 ft 4 in9 ft 4 in2,851 mm +14 mm+0.6 in +0.5%
Footprint8.65 m²93.1 sq ft93.1 sq ft8.65 m²8.60 m²92.6 sq ft92.6 sq ft8.60 m² +0.04 m²+0.5 sq ft +0.5%
Boot455 L16.1 cu ft16.1 cu ft455 L480 L17.0 cu ft17.0 cu ft480 L −25 L−0.9 cu ft −5.2%
Kerb weight1,650–1,824 kg3,638–4,021 lb3,638–4,021 lb1,650–1,824 kg1,525–1,800 kg3,362–3,968 lb3,362–3,968 lb1,525–1,800 kg +125 kg+276 lb +8.2%

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.

C-Class W206

Single garage
Tight 749 mm2 ft 5 in to spare in length, 590 mm1 ft 11 in each side
Parking bay
Tight 249 mm10 in to spare in length, 340 mm1 ft 1 in each side

3 Series G20

Single garage
Tight 791 mm2 ft 7 in to spare in length, 587 mm1 ft 11 in each side
Parking bay
Tight 291 mm11 in to spare in length, 337 mm1 ft 1 in each side

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Frequently asked questions

Which is bigger, the Mercedes-Benz C-Class W206 or the BMW 3 Series G20?

The Mercedes-Benz C-Class W206 is the bigger car by footprint (length × width). The C-Class W206 is 42 mm longer, 7 mm narrower and 4 mm lower than the 3 Series G20. Its wheelbase is 14 mm longer.

Will the Mercedes-Benz C-Class W206 and the BMW 3 Series G20 fit in a standard garage?

In a typical single garage of 5.5 × 3.0 m inside: The Mercedes-Benz C-Class W206 fits, but it is tight to get out (749 mm to spare in length, 590 mm each side). The BMW 3 Series G20 fits, but it is tight to get out (791 mm to spare in length, 587 mm each side). Widths are without mirrors; check your own garage with our garage checker.

Which has the bigger boot?

The BMW 3 Series G20: 480 L against 455 L in the Mercedes-Benz C-Class W206 (seats up, as quoted by the maker).

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