The Chevrolet El Camino is a coupe utility vehicle produced by the Chevrolet division of General Motors from 1959 through 1960, with production resuming in 1964 and continuing through 1987. The El Camino was introduced in response to the success of its rival Ford Ranchero. The El Camino was based on corresponding Chevrolet car lines, though in North America, the vehicle is classified and titled as a truck.
The first El Camino was produced for the 1959 was based on an existing and modified platform, namely the new-for-1959 Brookwood two-door station wagon and corresponding sedan delivery variant; unlike those models, the El Camino was available with any trim level and drivetrain option corresponding to the car line, including that of the Chevrolet Impala.
source wikipedia.org