Tesla ramps production as competitors flood market with electric cars. 'Pile-up of epic proportions'

Tesla's perch atop the luxury electric vehicle market is facing some serious challengers in the coming years. Automakers from Acura to Zotye are plugging into electric vehicles, with industry analysts expecting to see nearly a dozen new all-electric vehicles in U.S. showrooms by the end of 2019, with dozens more coming to market in 2020.