[from TheEngineer.co.uk - click here to read the original article]
[from news.BBS.co.uk - click here to read the original article]
[from CNN.com - click here to read the original article]
For a century the gasoline engine has remained largely unchallenged, seeing off all pretenders to its crown. But with concerns about greenhouse gas emissions and a host of new contenders looming large in the rear view mirror, is the gasoline-fueled automobile due to be overtaken by a fleet of cleaner, leaner rivals?