Nissan seems a little miffed at all the attention the Chevy Volt is getting for its mileage claims. Ford of Canadaâs CEO says the country needs a better car scrappage program. In the U.S., cash for clunkers mania is starting to cool off. All that and more, plus John talks to GMâs Bob Lutz about why and when theyâre getting rid of those GM badges that are on the front fenders of all their vehicles.