The Buick Skylark Gran Sport was introduced in 1965. A performance version of the standard Skylark, the Skylark Gran Sport was offered as a coupe, convertible, or hardtop, and was offered with a 400 cu in, or 340 cu in V8 engine. The Skylark Gran Sport was offered for two years before it became its own model, the Buick Gran Sport in starting in 1967.