Twin 911 engines (901 Type) gave a lot of power, but just not fast enough:149mph (240km/h) against Mario Andretti’s pole-sitting car with 166.3mph.
The rear engine was installed as in a mid-engine car, with its gearbox at the back. Each engine drove its own set of wheels. The gearboxes had to be turned to ensure that they would drive in the same direction! The engines were synchronized by a series of complex connections. It is said that the front engine could be shut down, and the car run with just the rear engine if necessary.
