[Updated] After two Grands Prix of phoney war and back room discussions, Lotus F1 came out and lodged a formal protest against the Mercedes F Duct front wing system in Shanghai. A hearing involving both teams took place at 17-15pm local time on Thursday in the FIA stewards’ room at the circuit. The stewards rejected the protest and Lotus has made it clear it will not appeal the decision. The system sheds drag from the front wing when the driver activates the DRS rear wing, by means of a pair of pipes which channel the air forwards through the chassis More…