Wendelin Wiedeking, the former CEO of Porsche, is under investigation for insider trading on stock options. Chinese automaker BYD plans to enter the U.S. market next year, a year ahead of schedule. BMW is set to introduce the most efficient version of the 3 Series at the Frankfurt Motor Show. All that and more, plus a look at how Ford managed to get the Fusion hybrid to deliver 41 miles per gallon.
