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
2016–17 Formula 4 UAE Championship 2016–17 Formula 4 UAE Championship The 2016-17 Formula 4 UAE Championship will be the inaugural 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 28 October 2016 at the Yas Marina Circuit and will finish on 11 March 2017 at the same venue, after a 3-race non-championship opening round and 18 championship races held across five rounds, all of them held at the Yas Marina Circuit