The age that a car is considered classic can vary depending on the organization and the state.
The Porsche 911 model series (pronounced Nine Eleven or in German: Neunelf) is a family of two-door, high performance rear-engine sports cars, introduced in September 1964 by Porsche AG of Stuttgart, Germany. Now in its eighth generation, all 911s have a rear-mounted flat-six engine, and usually 2+2 seating, except for special 2-seater variants. Originally, 911s had air-cooled engines, and torsion bar suspension, but the 911 has been continuously enhanced, and evolved across generations. Though the 911 core concept has remained largely unchanged,[1] water-cooled engines were introduced with the 996 series in 1998,[2][3] and front and rear suspension have been replaced by Porsche-specific MacPherson suspension up front, and independent multi-link rear suspension.