Romain Grosjean says he is approaching the 2015 season with a revamped driving style to help boost his form, as Lotus also reshuffles his engineering team.Eager to put the disappointment of a troubled 2014 campaign behind them, Lotus has appointed Julien Simon-Chautemps as Grosjean's new race engineer this season.Simon-Chautemps worked...

Mercedes suspects that clever engine mapping from Renault could be behind Red Bull and Lotus' recent upturn in performance in Formula 1.With Mercedes' title hopes having evaporated thanks to Sebastian Vettel's five consecutive victories, the German car manufacturer has its own theory as to why its challenge has faded. Renault-powered...