Despite the sportiest silhouette of the bunch, the big K is all BMW, as in one unrepentant 147-horse sporty tourer aimed directly at open-class Japanese hypersports that don't offer optional saddlebags. Throw a leg over and you're sitting in the S more than on it. Legroom is something less than first-class, but taller types will still be happier here than shorter ones, who'll find the bars a long way off. Vibration is minimal in sixth gear within 15 mph of any posted freeway limit. Scrolling through the trip computer to keep tabs on tire pressure, average mpg, projected fuel range, ambient air temperature and such is amusing, but the optimistic data provides only a vague idea of what's actually going on. Held to an unwavering 70 mph, the S is capable of putting 200 miles between fill-ups if you don't mind the stress of rolling into a gas station on fumes. For the most part, it makes an eminently civilized traveling companion whether you're on the road for three hours or three days. BMW's second-generation electronically adjustable suspension goes from plush to firm to genuinely taut on the fly with a touch of the button on the left bar. Another on the right toggles the two-position heated hand grips. Wind protection is luxurious by supersport standards, but noticeably skimpy compared to the Kawasaki Concours 14's adjustable screen.