HERNDON, Va. — Some 50 years after Don McLean penned "American Pie," King Cadillac is looking up while the jester, Elon Musk, is looking down and — I’m guessing here — looking ahead. Of course, Cadillac and its GM siblings are planning to catch Tesla in a way only $illon-dollar multinationals can; Cadillac, Chevrolet, GMC and Buick will be introducing a catalog of EVs, beginning in 2023.