The Riviera name entered Buick lexicon in 1949 with the Roadmaster Riviera coupe. It came around again, joined with the famous Electra name later in the '50s but never really found a home until the 1963 model year. The sleek Rivs featured Nailhead engines in either 401 or 425 cubic inches and three-speed transmissions. If you ask someone about old Buicks, this will probably be the one they come up with.