Pau, one of the oldest racing circuits in the world, may not have much of a future - drive it while you can.

The Bentley 3 Litre Sport which won Le Mans 100 years ago is heading back to the French circuit.

In 1924 Bugatti dispatched five of its brand-new Type 35 race cars from the factory in Molsheim to Lyon to take part in the French Grand Prix. A century later Bugatti enthusiasts from around the world retraced the 600-mile journey.

This classic route across France is a celebration of gallic guts and glory. 

Antony Ingram traces the long-lost route of one of France’s most notorious Grand Prix tracks.