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Size comparison · drawn to scale

Mercedes-Benz C-Class W203 vs Kia K3 BL7: size comparison

  • Length K3 BL7 19 mm0.7 in longer
  • Width K3 BL7 37 mm1 in wider
  • Height K3 BL7 49 mm2 in taller
  • Boot K3 BL7 89 L3.1 cu ft more

Car 1 blue, solid outline

C-Class W203 Mercedes-Benz · 2000–2007 · Sedan C-Class W203 4,526 × 1,728 × 1,426 mm14 ft 10 in × 5 ft 8 in × 4 ft 8 in Change

Car 2 coral, dashed outline

K3 BL7 Kia · 2023–present · Sedan K3 BL7 4,545 × 1,765 × 1,475 mm14 ft 11 in × 5 ft 9 in × 4 ft 10 in Change
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  • Car 1, blue, solid outline: C-Class W203
  • Car 2, coral, dashed outline: K3 BL7
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 ft1 ft2 ft3 ft4 ftWheelbase 2,715 mmWheelbase 8 ft 11 inLength 4,526 mmLength 14 ft 10 in1,426 mm4 ft 8 inWheelbase 2,670 mmWheelbase 8 ft 9 inLength 4,545 mmLength 14 ft 11 in1,475 mm4 ft 10 in

Scale about 1:20 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 W203 is 19 mm0.7 in shorter, 37 mm1 in narrower and 49 mm2 in lower than the K3 BL7. Its wheelbase is 45 mm2 in longer.

DimensionC-Class W203K3 BL7Difference, car 1 vs car 2
Length4,526 mm14 ft 10 in14 ft 10 in4,526 mm4,545 mm14 ft 11 in14 ft 11 in4,545 mm −19 mm−0.7 in −0.4%
Width1,728 mm5 ft 8 in5 ft 8 in1,728 mm1,765 mm5 ft 9 in5 ft 9 in1,765 mm −37 mm−1 in −2.1%
Height1,426 mm4 ft 8 in4 ft 8 in1,426 mm1,475 mm4 ft 10 in4 ft 10 in1,475 mm −49 mm−2 in −3.3%
Wheelbase2,715 mm8 ft 11 in8 ft 11 in2,715 mm2,670 mm8 ft 9 in8 ft 9 in2,670 mm +45 mm+2 in +1.7%
Footprint7.82 m²84.2 sq ft84.2 sq ft7.82 m²8.02 m²86.3 sq ft86.3 sq ft8.02 m² −0.20 m²−2.2 sq ft −2.5%
Boot455 L16.1 cu ft16.1 cu ft455 L544 L19.2 cu ft19.2 cu ft544 L −89 L−3.1 cu ft −16.4%
Kerb weight1,485–1,530 kg3,274–3,373 lb3,274–3,373 lb1,485–1,530 kgNot in our catalog yet -

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 W203

Single garage
Fits 974 mm3 ft 2 in to spare in length, 636 mm2 ft 1 in each side
Parking bay
Tight 474 mm1 ft 7 in to spare in length, 386 mm1 ft 3 in each side

K3 BL7

Single garage
Fits 955 mm3 ft 2 in to spare in length, 618 mm2 ft 0 in each side
Parking bay
Tight 455 mm1 ft 6 in to spare in length, 368 mm1 ft 2 in each side

Check your own garage with these cars

Frequently asked questions

Which is bigger, the Mercedes-Benz C-Class W203 or the Kia K3 BL7?

The Kia K3 BL7 is the bigger car by footprint (length × width). The C-Class W203 is 19 mm shorter, 37 mm narrower and 49 mm lower than the K3 BL7. Its wheelbase is 45 mm longer.

Will the Mercedes-Benz C-Class W203 and the Kia K3 BL7 fit in a standard garage?

In a typical single garage of 5.5 × 3.0 m inside: The Mercedes-Benz C-Class W203 fits with room to open the doors (974 mm to spare in length, 636 mm each side). The Kia K3 BL7 fits with room to open the doors (955 mm to spare in length, 618 mm each side). Widths are without mirrors; check your own garage with our garage checker.

Which has the bigger boot?

The Kia K3 BL7: 544 L against 455 L in the Mercedes-Benz C-Class W203 (seats up, as quoted by the maker).