The GM Lean Machine was developed by Frank Winchell of General Motors (USA) in the early 1980's as a concept car. The single seater vehicle is a 'lean' machine in the true sense of the word as it leans into corners like a motorcycle whilst keeping the stability of a normal car. The Lean Machine was able to reach 60 mph in just 6.8 seconds with a fuel economy of over 200 mpg.
For the futuristic 1993 movie 'Demolition Man' starring Sylvestor Stalone and Wesley Snipes the GM Lean Machine was one of seventeen concept cars produced by General Motors to be featured in the film with an insurance value of $69 million."