Yes, there is such a thing — running right now at the Eden Project in the UK.
It showcases “the pioneers who are making breakthroughs in aerodynamics, new fuels, engines and ultra-light materials.”
Of course you don’t have to rely on technology to make your drive greener, the Independent reminds us. As writer Sean O’Grady explains in his review of the Sexy Green Car Show, while you might knock 10 per cent off your fuel bill with a greener car, you can cut another 25 per cent simply by driving more sensibly.
EarthQuaker 
Very interesting.
If the economics don’t work, recycling and sustainable efforts won’t either.
Check http://LivePaths.com a blog about innovative entrepreneurs that make money selling recycled items, provide green services or help us reduce our dependency on non renewable resources. These include some very cool Green online ventures, great new technologies, startups and investments opportunities.
So, the Eden project is finally accomplishing something, eh? That’s good to hear!