In 1974, the Porsche 911 Turbo proved that even the dream of a 911 could be taken even further: with a fascinating symbiosis of outstanding performance, supreme elegance and pure emotion. The 911 Turbo (Type 930) pushed the boundaries of what was possible when it was launched in 1974. It brought the turbo technology known from the 917/10 and 917/30 racing cars with superior performance to a series-production sports car and combined it with unique design and a previously unheard-of suitability for everyday use. In the anniversary year, »Beyond Performance - Porsche 911 Turbo« is published: the book covers the beginnings of the Turbo in Porsche Motorsport, the transfer to series production and presents all generations of the Porsche 911 Turbo up to the special model »911 Turbo 50 Years«.