Crowd-funded Lego car powered by air

The crowd-funded project began with a tweet asking people to invest in an "awesome" start-up.

Four a...

The crowd-funded project began with a tweet asking people to invest in an "awesome" start-up.

Four air-powered engines and 256 pistons, all built of Lego bricks, enable the car to move.

Everything bar the wheels is made from Lego.

Co-founder Steve Sammartino told the BBC that he was "neither a car enthusiast nor a Lego enthusiast".

"What I am is a technology enthusiast and I wanted to show what is possible when you crowd-fund an idea and use young talented people," he said.

"I met this crazy Romanian teenager on the web and we came up with the idea but I knew that I couldn't afford to fund it," he added.

So he sent out a late-night tweet which read: "Anyone interested in investing $500 - $1,000 in a project which is awesome and a world first tweet me. Need about 20 participants."

Forty Australians offered cash and the Super Awesome Micro project, as it is dubbed, was born.

It took 18 months and a lot more money to build, said Mr Sammartino.

The car was constructed in Romania by him and his business partner Raul Oaida and then shipped to Australia where large parts of it needed to be rebuilt.

"We drove it in a suburb of Melbourne. The engine is fragile and the biggest fear was a giant Lego explosion impaling passers-by," Mr Sammartino told the BBC.

For the time being he has no plans on expanding the fleet.

"I've been up to my neck in Lego for four weeks and my fingers are still sore so I'm not keen on building another one just at the moment," he told the BBC.

"This can't have been an easy thing to make, let alone to make move. The engine in particular must have required some innovative thinking," said Matt Saunders, deputy road test editor of Autocar magazine.

"It doesn't look too comfortable though, and I wouldn't want to drive it very far. Or into anything by accident. Using Stickle Bricks in the crumple zones would have made for much better crash performance," he added.

BBC News | By Jane Wakefield

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