The Fastlane

Infiniti finished 2011 with a flurry of sales, upping its December results 37% from a year ago -- three times as much as the industry's overall 11% climb. That capped an impressive year in which Nissan's upscale brand moved 103,411 cars and trucks, a 28% increase. One German luxury car manufacturer reports that while it has been stealing customers from its other European competitors, it has been losing some buyers to Infiniti.