David EvansWould Loeb be a mistake for Citroen? At first the idea of Sebastien Loeb returning to the Citroen World Rally Championship team seemed both implausible and ill-advised. Now, after his second test, it makes complete sense 1506038400 WRC

Lawrence BarrettoWhy Williams is interested in Kubica Carlos Sainz Jr's loan move to Renault appeared to kill off any chances of Robert Kubica making a Formula 1 comeback. But Kubica could still find a lifeline with Williams - if he can outshine its other options 1506038400 F1

F1 RacingHow a Chelsea FC trip encapsulates Massa's reprieve Felipe Massa thought he'd waved goodbye to F1 for good at the end of 2016, but he's been given a last chance to have another crack at the sport he loves. JAMES ROBERTS joins him as he indulges his passion for a very different sport at Chelsea's training ground in Surrey 1505952000 F1

Ben AndersonThe hubris that's slowly killing McLaren and Red Bull So desperate are Red Bull and McLaren for success in Formula 1, they are both prepared to gamble on the engine supply front. The next 12 months should indicate whether either can revive its fortunes 1505952000 F1

Nigel RoebuckSingapore debacle was no racing incident The Singapore Grand Prix was a peculiar race, but strangest of all was the stewards' decision not to apportion blame to one driver in particular 1505952000 F1

F1 RacingHow Mercedes' lottery winner is targeting F1's jackpot As calm out of the cockpit as he is within it, this man is a true product of his Finnish hometown - as Anthony Peacock learned on a visit to Nastola for the Valtteri Bottas Duathlon 1505865600 F1

Autosport PerformanceHow to ace the World Karting Championships By James Newbold Autosport Performance speaks to an expert panel of ex-kart racers to share their tips for success in this weekend's World Karting Championships at PFI 1505865600 Performance

Dieter RenckenThe paradox that could fix F1's biggest flaw The announcement that Formula E champion Lucas di Grassi was becoming CEO of Roborace raised eyebrows - why would a racing driver want to run a series that could make people in cockpits obsolete? He explains his vision, and an unexpected new direction for Roborace 1505865600 FE