What AWD vehicle has the highest fuel economy?

2014 BMW 328d xDrive Sport Wagon, New York City, Jun 2014"I want a fuel-efficient car, but I live in a snowy area, and won't buy one without all-wheel drive; what's the best?" It's a question we hear often. Whether or not you agree that AWD is a must-have in wintry climes, the selection of cars with high fuel economy and AWD is limited. DON'T MISS: 2014 BMW 328d xDrive: 40-MPG Diesel Sport Wagon...