Top-end luxury and performance models dominated the Los Angeles Auto Show, with the 2014 Jaguar F-Type Coupe leading the A-list of stars. Originally shown as a coupe in concept form, the production version of Jaguar’s premier two-seater was a convertible. Now, over a year later, Jaguar (www.jaguarusa.com) has circled back and developed a coupe for production that varies in significant details from the original show car. That concept had a side-hinged rear hatch and a solid roof, while the production car uses a…