The Dino was also the first rear engined Ferrari. After early trials using a 1960 2.5 litre car, the first offical version was the 1961 1.5 litre with 180hp at 9500 rpm and was the most powerful car in its category. It had a tubular chassis with all round independent suspension. With a car of this type (but with a 120° V6 instead of 65°), the American Phill Hill won the World Championship.