A custom 1964 Chevrolet El Camino interior is eye-catching and distinctive, and it makes a great impression. This car was the first light utility truck that Chevy made. The first generation of the El was not equipped with performance engines or packages. In 1966, Chevy added a 325hp 396ci big block. Then, in 1968, the El Camino was fitted with a new, more aggressive design.