Cadillac has never made anything like the CTS-V Coupe, a $63,000 monster that’s half hedonist and half hot-rod. Not only that, Cadillac’s never fought in this part of the market before. The brand had monster engines back in its early days, but they were always pulling monster barges that wallowed as much as, well, barges. Here we have a coupe promising to cut up the roads like one of those German knives, but we’ve heard that refrain so many times before. This time, however, it might be true.