Rising oil prices and tougher fuel-economy requirements have unleashed a wave of small cars, gas-electric hybrids, and electric cars for the 2012 model year, while many larger vehicles have been tweaked to improve gas mileage. Here is Consumer Reports’ take on notable new models, including the Volkswagen Beetle, Chevrolet Sonic, Hyundai Veloster, Subaru Impreza, Buick Verrano, Hyundai Accent, Chevy Malibu, Toyota Camry, Audi A6, Volkswagen Passat, Nissan Versa, and Toyota Prius V.
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