DAN: Do a little search for examples, big differences. There were three full-size Chevys in 62, Biscayne, Bel Air and Impala. Biscaynes had rubber floor mats and plain interior trim, while the Bel Air was nicier and the Impala more deluxe yet. Same for the exterior, more mouldings and trim including tail lights. Big difference in roof lines. The cheaper 2-dr sdns had a formal look and the Impala had the new for 62 roof like AW makes. The Bel Air, like JLs, was available with the "bubble" top style which was a carryover from the 61 Impala.