Micro Compact Car Development Co., a joint venture between Swatch and Mercedes-Benz that spawned the Smart brand, is introduced March 4, 1994, with the unveiling of two show cars. The Eco Sprinter coupe with a 40-kilowatt electric motor and the Eco Speedster cabriolet with a three-cylinder gasoline engine featured rear-wheel drive and an underfloor engine-and-transmission unit — a concept that was used when large-scale production of Smart began.