The circuit layout has suffered several changes through the times. Started as a 7.370 km (4.580 mi) street circuit in 1931, it was later reduced to a 6.925 km (4.303 mi) version in the 1950s, which lasted until 1991, with small chances in some corner, chicanes introduction and start/finish line being moved forward.[1]

After a deadly accident in 1991, no race would take place in this circuit until 2007, after a length reduction to a 4.785 km (2.973 mi) long renovated layout. From the original circuit, remains the up and downhill section, from turn 6 (Boque), until turn 19, that drivers used to turn left. This section also gives the track big elevation changes.[2]

It's considered one of the most challenging tracks, due to its corners, high speed and drivers being very close to the barriers.