On Wednesday's episode of "Jay Leno's Garage," retired Dell executive Bruce Dietzen sells the host on his unconventional 2017 Renew, a car that was designed with the environment in mind. It was "carbon neutral" to produce and made from woven cannabis hemp.

Manufacturing the average car emits about ten tons of carbon dioxide into the atmosphere. "That's before it even hits the road," notes Leno, where it will release another six tons a year.