The Bugatti Veyron of its day. Long, low, sleek with a great big six under its hood, the XK120 was the fastest car you could buy at the time, with an incredible top speed of 120 mph.
Porsche built 25 917s for homologation in 1969. It won Le Mans in 1970 and 1971, only losing when the rules changed. The 917 still holds the Le Mans fastest lap record.
