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
2019 FIA Formula 3 Championship championship. The eight rounds were drawn from the 2018 GP3 Series calendar as the series was run on the Formula 1 support bill whereas the Formula 3 European Championship did not. A ninth round held at the Yas Marina Circuit in 2018 was omitted from the Formula 3 calendar. 2019 FIA Formula 3 Championship The 2019 FIA Formula 3 Championship is the inaugural season of the FIA Formula 3 Championship, a multi-event motor racing championship for single-seat open-wheel formula racing cars. The championship features drivers competing in two-litre Formula 3 racing cars which conform to the technical regulations, or formula,