Size comparison · drawn to scale
Citroen SM I vs Mercedes-Benz CLS (C218): size comparison
- Length CLS (C218) 47 mm2 in longer
- Height CLS (C218) 92 mm4 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 1:22 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 SM I is 47 mm2 in shorter and 92 mm4 in lower than the CLS (C218). Its wheelbase is 26 mm1 in longer.
| Dimension | SM I | CLS (C218) | Difference, car 1 vs car 2 |
|---|---|---|---|
| Length | 4,893 mm16 ft 1 in16 ft 1 in4,893 mm | 4,940 mm16 ft 2 in16 ft 2 in4,940 mm | −47 mm−2 in −1.0% |
| Width | 1,836 mm6 ft 0 in6 ft 0 in1,836 mm | Not in our catalog yet | - |
| Height | 1,324 mm4 ft 4 in4 ft 4 in1,324 mm | 1,416 mm4 ft 8 in4 ft 8 in1,416 mm | −92 mm−4 in −6.5% |
| Wheelbase | 2,900 mm9 ft 6 in9 ft 6 in2,900 mm | 2,874 mm9 ft 5 in9 ft 5 in2,874 mm | +26 mm+1 in +0.9% |
| Boot | Not in our catalog yet | 475 L16.8 cu ft16.8 cu ft475 L | - |
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.
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.
SM I
- Single garage
- Tight 607 mm2 ft 0 in to spare in length, 582 mm1 ft 11 in each side
- Parking bay
- Tight 107 mm4 in to spare in length, 332 mm1 ft 1 in each side
Frequently asked questions
Which is bigger, the Citroen SM I or the Mercedes-Benz CLS (C218)?
The Mercedes-Benz CLS (C218) is the bigger car by length. The SM I is 47 mm shorter and 92 mm lower than the CLS (C218). Its wheelbase is 26 mm longer.
Will the Citroen SM I and the Mercedes-Benz CLS (C218) fit in a standard garage?
In a typical single garage of 5.5 × 3.0 m inside: The Citroen SM I fits, but it is tight to get out (607 mm to spare in length, 582 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.

