Cars and TransportationBMW reinvents the 3 Class04:48This browser does not support the video element.Cars and Transportation08/12/2015August 12, 201540 years of production. Six generations of designs. The 3 Series is BMW's most successful model. The company has now made a few improvements. And the look of the vehicles has changed a little, too; they're now a little wider.Copy linkAdvertisement