The company that invented Grand Touring reinvents the Grand Tourer. That’s less than earth-shattering news until you settle into the cockpit of a K1600GT. We’ve settled into less comfortable Barcaloungers, and none of them came with a 160-horsepower, 24-valve straight-six, an adaptive xenon headlight array that helps you see around corners, satellite navigation, electronically adjustable suspension or traction control. That adds up to 703 lbs. of Bavarian luxury transport that should handle more like a Barcalounger Churchill II in double-fudge leather. But here’s the earth-shattering part: It doesn’t.