A stylish exterior may help attract new car buyers, but a comfortable, functional interior seals the deal. Proof that the all-new Mazda MPV minivan boasts one of the best interiors in the business was provided by the editors of Auto Interiors magazine, who honored the MPV for "Truck Interior of the Year" yesterday. The presentation was made during the Automotive & Transportation Interiors Expo at Cobo Center in Detroit. Gordon Dickie, vice president of Research and Development for Mazda North American Operations, accepted the award on behalf of Mazda.