The 300 S was introduced in 1952, and it featured a number of enhancements over the 300 Saloon; most notably, there was a 30 per cent increase in horsepower, from 115 to 150. Praised by the motoring press, this new car was capable of a remarkable 110 mph top speed. Appearance was also enhanced with a wraparound windshield, graceful new wing lines, and a new curved rear body line. At $12,500 each, they cost as much as 10 standard cars, and as a result, only 560 cars were built over six years. Such exclusivity resulted in an enviable list of clients, including Aga Khan, Gary Cooper, and Cary Grant.

More importantly, the 300 S introduced three sporty new bodies on a 25-centimetre shorter chassis; these bodies were a coupé, roadster, and cabriolet, and all three of them were priced equally. The coupé offered secure weather protection, the roadster had a sleek look, and the cabriolet gave the versatility of excellent all-weather protection in a true open car.

Although the styling was fresh and modern, it was the interior that was most remarkable. In an era of spartan furnishings, the new 300 S featured a lavish interior that had acres of supple leather, glossy burl walnut trim, a dash with chrome-accented instruments, and a switchgear that was made with the precision of fine jewellery.

This Cabriolet being offered today was one of two-hundred and three built, and it was delivered new in Los Angeles, California, U.S.A., in December 1954. It was painted in black and came with a dark beige leather interior and a tan soft top, as it is still presented today. It presents as an older restoration that still remains in attractive condition today. All trim shows negligible wear from having been lightly driven, and it would be improved by a thorough detailing. Included amongst the many nice accessories that this Cabriolet has are a pair of bumper-mounted Bosch fog lamps and black wheels that are shod in BF Goodrich Silvertown wide whitewall tyres. Under the hood, the powerplant of this 300 S displays as a well-executed detail that has modern hoses, wiring, and cables.

The cabin is trimmed in rich red leather and corresponding red carpet, with both exhibiting inviting wear. A tan headliner shows enjoyment and light soiling, which gives support to the assumption that this car has been toured at length. The interior chrome trim and switchgear wear some light patina, which could be resolved with a thorough polishing, and they are surrounded by beautiful woodwork. Pleasant accessories include smoke-colour tinted sun visors and a Becker Nürburg radio with additional modern-style speakers that were installed in the rear passenger compartment. The boot is finished in the same red carpeting as the interior and black rubber matting. A full whitewall spare tyre and tool kit is included in the boot, and there is enough room left within for luggage.

This Cabriolet will provide just as much luxurious and elegant touring satisfaction to its next owner as it did in the 1950s, with the top up or down.