Mercedes-Benz SLS AMG E-Cell
Some concepts actually make it to production, and one example is the Mercedes-Benz SLS AMG E-Cell. Based on the current fire-breathing SLS model, the E-Cell uses four electric motors instead of a gravity-defying V8.
The result is a more eco-friendly car that can get to 60mph in 4 seconds and then on to 155mph. Best of all, all those 525 ponies and 650lb/ft of torque are available from 4,000 revs. We're less sure about the colour, though, which looks like the aftermath of beer and kebab night.