ING rates the Turkish Grand Prix at Istanbul Park highly among the Formula One circuits. These are the facts Circuit- Istanbul Park is by far the best Grand Prix circuit built in recent years. The track flows constantly up- und downhill, and the curve combinations are amongst the most demanding in the Formula One. Strain on Drivers - Curve 8 puts over 5gs of centrifugal force on the drivers, taking them to their physical limits. The circuit is also hazardous, because cars tend to bottom out, lose grip and become instable. Vehicle Set Up - Beside the burning straightaways, there are also slow segments requiring exceptional traction. Good aerodynamic efficiency is the key to fast lap times. Engineering Requirements - With 66.5 full-throttle sections, Instanbul Park is among the fastest circuits. Drivers shift 38 times per lap, which is relatively easy on gearboxes. Brake wear is also comparatively low.