The 3 Series has been an enduring success story for BMW ever since its launch 40 years ago. Today the sedan and wagon editions account for one in every four BMWs sold, making it the marque’s most popular car. The sixth generation introduced in 2012 has been given an anniversary makeover.<br /><br />More Drive it!: http://www.dw.de/program/drive-it/s-9690-9798
