Lotus and Brazilian car manufacturer Obvio have a number of versions of cute VW Beetle-esque cars that run on any combination of ethanol, petrol or natural gas. They also have optional upgrades to become plug-in electric vehicles. They have a very consistent design style and the car even features an inbuilt ‘carputer’ with GPS, details on nearby locations such as restaurants and virtual instrumentation. You can also use the console as a normal PC. The engine uses continuously variable transmission (CVT) rather than distinct gears which aims to cut down on fuel use.
[thanks to Alex Thorne for the link, picture via the Obvio website]