The 190SL presented an attractive, more affordable alternative to the exclusive Mercedes-Benz 300SL, sharing its basic styling, engineering, detailing, and fully independent suspension. While both cars had double wishbones in front and swing axles at the rear, the 190SL did not use the 300SL's purpose-built W198 tubular spaceframe. Instead, it was built on a shortened monocoque R121 platform modified from the W121 small saloon.

The car was available either as a soft-top convertible or with removable hardtop. A small a third-passenger transverse seat was optional. In 1959, the hardtop's rear window was enlarged.

What to look for

• 190SL's are prone to rusting. A good solid underneath - frame rails and floors - are very important for a good car.

• Original engine - the first 6 digits of the engine number should be 121.921

• Two Tops. 190SL's with 2 tops are more valuable