19 years ago. The first tzero was built in 1997 with lead acid batteries and the lithium ion battery conversion was done in 2003: https://www.autoweek.com/news

19 years ago. The first tzero was built in 1997 with lead acid batteries and the lithium ion battery conversion was done in 2003: https://www.autoweek.com/news/a2103556/tzero-electric-vehicle-would-not-die-went-mighty-darn-fast/ https://www.autoweek.com/news/a2103556/tzero-electric-vehicl...