The Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors. The Impala became the best-selling automobile in the United States when full size models dominated the market and competed against the Ford Galaxie 500 and the Plymouth Fury. From 1958 until 1965, it was Chevrolet's most expensive passenger model. After reaching its sales peak, Chevrolet introduced the Caprice in 1965. The Impala was then positioned down one trim level but still above the economical models Bel Air and Biscayne, and remained the most popular full size Chevrolet model through the mid-eighties. The Impala, named after the southern African antelope, is most readily distinguished by having three sets of taillights featured for many years.