BilgeRat
Elio Addict
Not a three wheeler, but interesting nonetheless. A design by Gordon Murray, who designed F1 cars for Brabbham and McLaren, it follows the Elio in using a proven propulsion system, in being light weight, and aerodynamic. Looks like it would be a great city car. (I can just see what creative "parking methods" Italian drivers could do with these!)
http://www.bbc.com/autos/story/2016...tober_&kwp_0=258860&kwp_4=997218&kwp_1=474841
http://www.bbc.com/autos/story/2016...tober_&kwp_0=258860&kwp_4=997218&kwp_1=474841