Marton Brundle drives the original, intimidating 14km Spa-Francorchamps circuit, first raced in 1922 and last in 1970, in a piece for Sky Sports.

Sky Sports F1: Old Spa-Francorchamps by Martin Brundle | YouTube.

Back then Eau Rouge looked nothing like it does today. Forget taking the mighty corner flat out in the dry, in the middle of it there was a hairpin, there was no armco, and spectators sat by the side of the track with their picnics. Even in the 1950s Eau Rouge was a monster, when all four wheels of the car would leave the ground as it hurtled over the crest of the hill.

A Trip Around Old Spa-Francorchamps | Formula 1 Blog.