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Mercedes-Benz 300SL W198 vs Porsche 911 992: size comparison

  • Length About the same length
  • Width 911 992 62 mm2 in wider
  • Height 300SL W198 11 mm0.4 in taller

Car 1 blue, solid outline

300SL W198 Mercedes-Benz · 1954–1957 · Coupé 300SL W198 4,520 × 1,790 × 1,300 mm14 ft 10 in × 5 ft 10 in × 4 ft 3 in Change

Car 2 coral, dashed outline

911 992 Porsche · 2019–present · Coupé 911 992 4,519 × 1,852 × 1,289 mm14 ft 10 in × 6 ft 1 in × 4 ft 3 in Change
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  • Car 1, blue, solid outline: 300SL W198
  • Car 2, coral, dashed outline: 911 992
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 2,400 mmWheelbase 7 ft 10 inLength 4,520 mmLength 14 ft 10 in1,300 mm4 ft 3 inWheelbase 2,450 mmWheelbase 8 ft 0 inLength 4,519 mmLength 14 ft 10 in1,289 mm4 ft 3 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 300SL W198 is 1 mm0.0 in longer, 62 mm2 in narrower and 11 mm0.4 in taller than the 911 992. Its wheelbase is 50 mm2 in shorter.

Dimension300SL W198911 992Difference, car 1 vs car 2
Length4,520 mm14 ft 10 in14 ft 10 in4,520 mm4,519 mm14 ft 10 in14 ft 10 in4,519 mm +1 mm+0.0 in
Width1,790 mm5 ft 10 in5 ft 10 in1,790 mm1,852 mm6 ft 1 in6 ft 1 in1,852 mm −62 mm−2 in −3.3%
Height1,300 mm4 ft 3 in4 ft 3 in1,300 mm1,289 mm4 ft 3 in4 ft 3 in1,289 mm +11 mm+0.4 in +0.9%
Wheelbase2,400 mm7 ft 10 in7 ft 10 in2,400 mm2,450 mm8 ft 0 in8 ft 0 in2,450 mm −50 mm−2 in −2.0%
Footprint8.09 m²87.1 sq ft87.1 sq ft8.09 m²8.37 m²90.1 sq ft90.1 sq ft8.37 m² −0.28 m²−3.0 sq ft −3.3%
Kerb weight1,295 kg2,855 lb2,855 lb1,295 kg1,450–1,715 kg3,197–3,781 lb3,197–3,781 lb1,450–1,715 kg −155 kg−342 lb −10.7%

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.

300SL W198

Single garage
Fits 980 mm3 ft 3 in to spare in length, 605 mm2 ft 0 in each side
Parking bay
Tight 480 mm1 ft 7 in to spare in length, 355 mm1 ft 2 in each side

911 992

Single garage
Tight 981 mm3 ft 3 in to spare in length, 574 mm1 ft 11 in each side
Parking bay
Tight 481 mm1 ft 7 in to spare in length, 324 mm1 ft 1 in each side

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Frequently asked questions

Which is bigger, the Mercedes-Benz 300SL W198 or the Porsche 911 992?

The Porsche 911 992 is the bigger car by footprint (length × width). The 300SL W198 is 1 mm longer, 62 mm narrower and 11 mm taller than the 911 992. Its wheelbase is 50 mm shorter.

Will the Mercedes-Benz 300SL W198 and the Porsche 911 992 fit in a standard garage?

In a typical single garage of 5.5 × 3.0 m inside: The Mercedes-Benz 300SL W198 fits with room to open the doors (980 mm to spare in length, 605 mm each side). The Porsche 911 992 fits, but it is tight to get out (981 mm to spare in length, 574 mm each side). Widths are without mirrors; check your own garage with our garage checker.

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