http://www.youtube.com/watch?v=_ObE4_nMCjE#t=30
Australian entrepreneur Steve Sammartino and Romanian tech genius Raul Oaida had such a dream – to build a drivable car made primarily of Lego parts that would run solely on air.
Almost two years and 500,000 Lego pieces later, they have accomplished their goal.
The Hot Rod-inspired plastic beast is motivated by four air-powered orbital engines with a total of 256 pistons. The intricate engineering that went into creating this almost entirely out of Lego blocks is mind-boggling (the wheels and some load-bearing parts of the car are not made of Lego).
Understandably, the car is not very fast at the moment, with a top speed of around 20 to 30 km/h. But speed is really beside the point, here. This is a car made of plastic toy pieces. That you can drive. And it’s powered by air.