Lamborghinis, Ferraris, BMWs, and Fiats, with every slice of exotica in-between. Amelia Island Concourse d'Elegance might feature some of the rarest, most expensive autos in the world, but Cars & Coffee opens the weekend with a far broader slice of four-wheeled entertainment. You can never quite predict what will be rubbing shoulders with bonafide supercars. For 2016, Cars & Coffee …