Lexus news - Good vibrations - 2009

Lexus engineers in Japan have worked out how to convert the energy generated by vehicles driving over a bridge into electricity to power the structure's lights.

They then go on to say that some clever types are working out how to collect energy generated by raindrops falling and people walking - so you could perhaps one day power your city by walking around it. Good stuff.

(Pity about the Lexus guff at the end, though.)