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
2017–18 Formula 4 UAE Championship 2017–18 Formula 4 UAE Championship The 2017-18 Formula 4 UAE Championship is the second season of the Formula 4 UAE Championship, a motor racing series for the United Arab Emirates regulated according to FIA Formula 4 regulations, and organised and promoted by the Automobile & Touring Club of the UAE (ATCUAE) and AUH Motorsports. It began on 14 December 2017 at the Yas Marina Circuit and finished on 3 March 2018 at the Dubai Autodrome, after 24 championship races held across six quadruple-header rounds. The calendar was announced on 5 September 2017. The season will feature six quadruple-header rounds, all