 Complete the following phrase:  The Eagle Mk1 made its race debut at the 1966 Belgian Grand Prix, with a single car entered for Dan Gurney. The Eagle made an instant visual impact, with its gracefully crafted chassis clothed in dark blue paint, with a white-lipped radiator opening and a single white stripe running the length of the cars dorsal surface; an elegant interpretation of the USA national racing colours. Unfortunately for the team the car, despite its good looks, failed to finish. For the introduction of the new V12 engine at the 