Smart produces a line of subcompact vehicles designed for urban living. Initially launched in the late 1990s, Smart's goal was to create a practical car that provided exceptional fuel economy and could fit into the smallest of parking spaces. The company also produce a larger four-door version of the two-door subcompact.
Due to the small size of the cars, Smart designed the "Tridion Safety Cell" as the main structure of its vehicles. Made of ultra-high-strength steel, it is designed minimize deformation and protect occupants during a collision by absorbing crash energy and redistributing it away.
As of 2015, there are two Smart models in production: the Smart Fortwo and the smart Forfour. Currently, the Fortwo is the only model available in the United States. The Forfour is the four-door version of the Fortwo and seats four people. Powered by a three-cylinder inline engine, the Forfour has a top speed of just above 93mph. The Fortwo, originally the City-Coupe, was Smart's first vehicle. It was initially released in 1998 in Europe. Both models are equipped with automatic start/stop for increased energy efficiency. The Fortwo coupe seats two and is available in many different styles; and like the Fourfor, it also features Smart's three-cylinder engine and a standard five-speed manual transmission. A six-speed automatic transmission is also available. Smart also produces an all-electric drive version of the Fortwo.