Zipcar was founded in 2000 to address problems with transportation and parking congestion. By 2012, Zipcar had over 1 million members, operated in 500 cities across 9 countries, and had a fleet of over 10,000 vehicles. Avis Budget Group acquired Zipcar for $500 million in cash in 2013. Zipcar competes with services like Car2Go, Maven, Uber/Lyft, and Enterprise but differentiates itself by offering convenient access to vehicles for occasional use through an online reservation system and by making many vehicle types available in urban areas.