Already a German favorite selling more than 550,000 models over the past three and a half years, Mercedes-Benz has stretched the wheelbase of its A-Class minivan by more than six inches to give it more space and comfort. Nearly $2 billion was spent developing a number of styling and engineering changes, including a 25-percent horsepower boost to its 1.6-liter turbodiesel engine and a reconfigurable rear seat. It's larger format provides a more viable platform for future U.S. sales.
