The Porsche 911 is a high-performance two-door sports car introduced in 1964 with a rear-mounted flat-six engine and rear-wheel drive. While continuously enhanced over the years, the basic rear-engine concept has remained unchanged. The air-cooled engines were used until 1998 when the 996 series introduced water-cooling. The iconic design features like its distinctive flyline and rear-engine placement give it legendary and timeless sports car status.