Tesla Vs Porsche, Green-Car Deals, No Bolt For U.K., Taiwan Thunder: Today's Car News

#hashtags: #Frankfurt Motor Show #Green Car Reports #Dan Ammann

We're back from the Frankfurt Motor Show, and we've been thinking about what upcoming German electric luxury cars mean for Tesla Motors. We also compare some sporty compact cars, tell you about a new hatchback coming up, and lay out this month's best green-car deals. All this and more on Green Car Reports. GM executive Dan Ammann calls...