Powered by Porsche - the alternative race cars Book by Roy Smith

Powered by Porsche - the Alternative Race Cars is a thorough and fascinating account of the racing cars that were powered by Porsche engines, but where the chassis and development of the car was carried out by others.
The Porsche company in Zuffenhausen, Germany, can probably be said to be the most successful marque ever for victories in the motor racing scene. Likewise many firsts in innovation have come with the name Porsche attached.
Many major racing car producers such as Elva, Lotus, Lola, or March, as well as many smaller independents, at some time featured a Porsche engine in their chassis. Demand for the services and supply of cars, chassis, and parts from Porsche, often outstripped their ability to deliver during the late '70s to early '80s. With many new projects in the rapidly expanding Porsche organisation, race car projects had to be prioritised. This would lead to the creation of the replicas, as opposed to the factory-built works race cars, and even Porsche was building 'replica' 935s to supply to clients, continuing into the 962 era. In turn, a whole new, highly specialised, high quality industry grew up to meet the demand for Porsche-powered racers.