"why don't they" -> Remembers me of a recent HN discussion ;)
But... Actually you are not far from something. This is actually an approach from Audi: http://green.autoblog.com/2010/03/01/geneva-preview-audi-a1-...
From what I read though this approach was not approved in the mother company, VW. Let's see who wins at the end.
But... Actually you are not far from something. This is actually an approach from Audi: http://green.autoblog.com/2010/03/01/geneva-preview-audi-a1-... From what I read though this approach was not approved in the mother company, VW. Let's see who wins at the end.