The 1966 Impala received only a minor facelift from its predecessor that included a revised horizontal bar grille up front and new triple rectangular taillights that replaced the triple round lights used on full-sized Chevrolets each year since 1958 with the exception of 1959, and chrome beltline strips were added in response to complaints about parking lot door dings on the clean-lined '65 models. The standard column-shift three-speed manual was now full synchronized, and a new 250-cubic-inch six-cylinder engine