Formula One returns to the Autódromo Hermanos RodrÃguez in Mexico City after a 23-year absence. The 4.305km (2.675-mile) circuit has been heavily revised since it last hosted a grand prix, in 1992, but it remains on its original site in the Magdalena Mixhuca Park and it retains its name, in memory of the RodrÃguez brothers.
The layout consists of seven left-handers and 10 right-handers, but the 1.314km (0.816-mile) pit straight has perhaps the biggest influence on car set-up. To achieve a predicted top speed of 328km/h (204mph), the cars will need to maximise a delicate trade-off between aerodynamic downforce and drag, and complicating matters further is the altitude.
Situated at 2,200 metres (7,218 feet), the Autódromo is considerably higher than any other venue in F1. There is only 78 per cent of the oxygen available at sea level, which changes the performance characteristics of the car and the power unit. The turbo has to spin faster to compensate for the lack of oxygen entering the ICE (internal combustion engine) and the thinner air means the car generates less aerodynamic downforce at any given wing level.
Many of the faster sections of track have been altered since the last race. The Esses have been modified in the name of safety and the notorious final corner, Peraltada, is no longer included in its entirety. The banked 180-degree right-hander is now preceded by a stadium section, from which the cars emerge in second gear halfway around Peraltada.
The asphalt is new, giving the surface an oily film which will be slippery to begin with. At least the teams will be using familiar tyre compounds because Pirelli is taking the same rubber to Mexico that has been used on seven previous occasions this year. The Soft (Option) and Medium (Prime) compounds will provide traction out of the slow corners, while providing resistance through some of the faster corners.
Did you know?
The Autódromo Hermanos RodrÃguez will have the second fastest average speed of the year, after Monza.
by McLaren
