Renault's 2016 Formula 1 challenger is a "compromise" caused by the delay in confirming the takeover of Lotus, says technical director Nick Chester.There were months of protracted negotiations before Renault finally completed the takeover, and with plans for the new car already at an advanced stage, a move from Mercedes...

Formula 1's plans to introduce a rules revolution in 2017 could be enough to lure Adrian Newey back to the sport full time, reckons Red Bull boss Christian Horner.Newey decided last year to move away from total commitment to grand prix racing because he had grown frustrated with ever more...