General Motors was the first company (in the modern era) to release an all-electric automobile. In 1990, GM debuted the "Impact" concept car at the Los Angeles Auto Show. It was the first car with zero-emissions marketed in the US in over three decades. The Impact was eventually produced as the EV1 for the 1996 model year. It was available through dealers located in only a few regions. Vehicles were leased, rather than sold, to individuals. In 1999 GM decided to cease production of the vehicles. When the individual leases had expired, they declined to renew the leases or allow the lessors to purchase them. All of the EV1s were eventually returned to General Motors and, with the exception of a few which were donated to museums, all were destroyed. The documentary film "Who Killed the Electric Car?" covered the EV1 story.