Circuit de Monaco downhill again to a double right-hander called "Portier," named after region of Monaco, before heading into the famous tunnel, a unique feature of a Formula One circuit. (Until 2009 only one other circuit, Detroit in 1982–88, featured a tunnel, but the F1 series now includes racing at the Yas Marina Circuit in Abu Dhabi, which presents a shorter tunnel at the exit of the pit lane.) As well as the change of light making visibility poor, a car can lose 20–30% of its downforce due to the unique aerodynamic properties of the tunnel. The tunnel also presents a unique problem
2010 Yas Marina GP2 Asia Series round Charles Pic started on pole for Race 1. The feature race was won by Oliver Turvey, claiming his first GP2 Asia victory by leading home teammate Davide Valsecchi in an iSport one-two at Yas Marina. Formula 3 Euroseries champion Jules Bianchi began his GP2 career with third for ART, with the charging Luca Filippi coming through to fourth from the back of the grid for Meritus only to retire on the last lap and hand the place to Arden's Javier Villa. Poleman Charles Pic (Arden) had a disastrous race, starting when Turvey burst ahead off the line and Valsecchi surged