BMW placed its sensational inline-four superbike engine into a more upright and touring-focused package with its introductory 2015 S 1000 XR. Fast-forward and the Motorrad team applies the 2020 round of S 1000 RR technical updates to this liter-class XR. But where the superbike comes up short in areas, the XR stands out in its high-level refinement.