Audi Readying Plug-in Hybrid Assault

Audi planners are hoping to decide on which of three prototype versions of the maker’s popular TT model to put into production. And the odds are good that it will feature a plug-in hybrid drivetrain by the time it reaches showrooms. Like its parent, VW, Audi is ready to introduce a spate of plug-in hybrids. For more, go to TheDetroitBureau.com.