Mercedes-Benz USA is taking over the distribution of smart from the Penske Automotive Group. President Obama wants to "pull the plug" on funding for clean-diesel and fuel-cell technologies, diverting it toward electric vehicles instead. Bentley set a new world-speed record, topping 330 kilometers per hour . . . on ice! All that and more, plus a look at the brand-new 2011 Nissan Quest minivan.