The three-wheeled T-Rex has been around for a while, with performance that humbles even hard-core lightweight sports cars. Because it has only three wheels, no doors, no airbags or crash structure (legally it's considered a motorcycle), the weight is very low and the acceleration, braking and cornering performance are fantastic. I've been aware of this video for some time: http://www.youtube.com/watch?v=iv4ghO8mLEA Until now I was unaware of any plans to commercialize it; I had assumed it merely somebody's homebrew conversion of a T-Rex. Now the real story comes out: http://www.autobloggreen.com/2007/02/08/need-a-three-wheeled-all-electric-speed-machine-it-s-yours-for/ If you've been hankering for a Wrightspeed X1, this would look to me like an even more attractive option. Available "sometime later this spring" for only about $42,000, it should not only be much cheaper than the X1, and available much sooner, but probably will outperform it too.