This is a 1936 Mercedes-Benz 500K Offener Tourenwagen, chassis number 209421 and engine number 123724. It features a 5,018cc eight-cylinder engine with a Roots supercharger, capable of producing 100bhp or 160bhp with the supercharger engaged, and a 4-speed manual transmission. This model is one of only 16 sporting Tourenwagens built on the 500K chassis, and it has a history of awards including a Pebble Beach Concours d'Elegance prize-winning restoration. The car was formerly owned by Ralph W.E. Cox Jr. for over 60 years and was recently refurbished to immaculate condition.