AMC never had Detroit’s biggest budget or best-known badge, but for a handful of years in the late 1960s and early 1970s it built some of the most interesting muscle cars in America — from the two-seat-only AMX to the Hurst-built SC/Rambler. This first installment in our muscle-car buying series breaks down AMC’s most collectible models, what made them different, and what to check before buying one today. Read on to find out why AMC muscle remains one of the hobby’s better-kept secrets.