Unless you’ve been living under a rock for the past year or so, BMW Motorsport is about to make its return to the DTM series after a twenty year hiatus. Since the M3 DTM concept was unveiled last July the company has been pretty much faultless when it came to keeping fans updated with its progress. Here’s the final promo before all the cars line up on the grid at Hockenheim this weekend, with BMW hoping to repeat the success it first enjoyed 25 years ago, winning the DTM title at the first attempt.