Size comparison · drawn to scale
Porsche 959 vs Mercedes-Benz 190 SL W121 BII: size comparison
- Length 190 SL W121 BII 30 mm1 in longer
- Width 959 100 mm4 in wider
- Height 190 SL W121 BII 40 mm2 in taller
Car 1 blue, solid outline
Car 2 coral, dashed outline

Change cars
Zoom in to read the measurements - or see the table below.
Scale about 1:19 on a desktop screen · grid 500 mm1 ft · in Overlay both cars start at the front bumper Side view: dashed lines mark the axles Front view: width without mirrors Top view: footprint on the road
Dimensions and difference
The 959 is 30 mm1 in shorter, 100 mm4 in wider and 40 mm2 in lower than the 190 SL W121 BII. Its wheelbase is 128 mm5 in shorter.
| Dimension | 959 | 190 SL W121 BII | Difference, car 1 vs car 2 |
|---|---|---|---|
| Length | 4,260 mm14 ft 0 in14 ft 0 in4,260 mm | 4,290 mm14 ft 1 in14 ft 1 in4,290 mm | −30 mm−1 in −0.7% |
| Width | 1,840 mm6 ft 0 in6 ft 0 in1,840 mm | 1,740 mm5 ft 9 in5 ft 9 in1,740 mm | +100 mm+4 in +5.7% |
| Height | 1,280 mm4 ft 2 in4 ft 2 in1,280 mm | 1,320 mm4 ft 4 in4 ft 4 in1,320 mm | −40 mm−2 in −3.0% |
| Wheelbase | 2,272 mm7 ft 5 in7 ft 5 in2,272 mm | 2,400 mm7 ft 10 in7 ft 10 in2,400 mm | −128 mm−5 in −5.3% |
| Footprint | 7.84 m²84.4 sq ft84.4 sq ft7.84 m² | 7.46 m²80.3 sq ft80.3 sq ft7.46 m² | +0.37 m²+4.0 sq ft +5.0% |
| Kerb weight | 1,450 kg3,197 lb3,197 lb1,450 kg | 1,158 kg2,553 lb2,553 lb1,158 kg | +292 kg+644 lb +25.2% |
| Price new (EUR) | from about €214,743 (1987) | Not 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. New prices are list prices in EUR entered by our editors, with the year.
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.
959
- Single garage
- Tight 1,240 mm4 ft 1 in to spare in length, 580 mm1 ft 11 in each side
- Parking bay
- Tight 740 mm2 ft 5 in to spare in length, 330 mm1 ft 1 in each side
190 SL W121 BII
- Single garage
- Fits 1,210 mm4 ft 0 in to spare in length, 630 mm2 ft 1 in each side
- Parking bay
- Tight 710 mm2 ft 4 in to spare in length, 380 mm1 ft 3 in each side
Frequently asked questions
Which is bigger, the Porsche 959 or the Mercedes-Benz 190 SL W121 BII?
The Porsche 959 is the bigger car by footprint (length × width). The 959 is 30 mm shorter, 100 mm wider and 40 mm lower than the 190 SL W121 BII. Its wheelbase is 128 mm shorter.
Will the Porsche 959 and the Mercedes-Benz 190 SL W121 BII fit in a standard garage?
In a typical single garage of 5.5 × 3.0 m inside: The Porsche 959 fits, but it is tight to get out (1,240 mm to spare in length, 580 mm each side). The Mercedes-Benz 190 SL W121 BII fits with room to open the doors (1,210 mm to spare in length, 630 mm each side). Widths are without mirrors; check your own garage with our garage checker.
Drawn to one scale
Both cars use the same millimetre grid, so a longer bonnet or a taller roof shows exactly as it is.
Wheels at the real wheelbase
Dashed lines mark the axles. In Overlay both cars start at the front bumper; car 2 has a dashed outline.
Will it fit my garage?
Switch to Top view, or to feet and inches if your garage plan is in feet. Allow about 600 mm (2 ft) for opening the doors.
