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
Baku City Circuit Car, and Vettel locked up whilst trying to overtake Bottas on the Safety Car restart, dropping him behind Hamilton, Räikkönen and Sergio Pérez into 5th place. Bottas, however, suffered a puncture the lap after the restart and was forced to retire from the race, meaning that Lewis Hamilton eventually took the race victory, ahead of Räikkönen in second and Pérez in 3rd. Baku City Circuit The Baku City Circuit () is a motor racing street circuit located in Baku, Azerbaijan constructed near Baku Boulevard. A lap of the circuit is , making it the second-longest circuit on the Formula One