The BMW 5 Series is one of those standard-bearers people use to benchmark other full-size sedans – and for good reason. It’s been well loved by BMW loyalists and jaded journalists the world over. From its home on the German Autobahn going triple digit speeds to weaving its way through the crowded streets of third-world countries where it chauffeurs government officials and local dignitaries, the 5 has been a mainstay for decades. For 2017, BMW debuted an all-new 5 Series, complete with an updated design, an architecture shared with the larger 7 Series, and more driver tech than ever. This new seventh-generation 5 Series also boasts a new M Performance model for 2018 – the BMW M550i xDrive.