The winners and losers of MotoGP's reshuffle More than half of the MotoGP grid is a new face in a new place this season. Some have starred, but others need to knuckle down and do better 1496275200 MotoGP

Has Rossi's replacement already stepped forward? Sooner or later, Valentino Rossi will retire. But even if the MotoGP legend doesn't hang up his helmet until the end of 2018, one rider on the grid might already have one arm on the '19 Yamaha's handlebars 1494374400 MotoGP

Was Lorenzo's Ducati debut as bad as it looked? As far as first races go, Jorge Lorenzo's debut with Ducati was underwhelming at best. But was that down to teething problems, or does Sunday's race in Qatar point to further problems to come throughout the year? 1490745600 MotoGP

Can Yamaha's new star topple Marquez? Marc Marquez probably shouldn't have won the 2016 MotoGP title, but he did. His reward is facing competition that looks even stronger this season - and is coming from more areas 1490227200 MotoGP

MotoGP shows F1 'customer' is not a dirty word As Formula 1's leadership change prompts fresh thinking about its future shape, the new chiefs ought to take a lot at how customer teams have contributed to the MotoGP spectacle 1485907200 MotoGP

Why Rossi and Vinales are unlikely to stay friends After the animosity with Jorge Lorenzo in recent years, Valentino Rossi began 2017 singing a friendly happy birthday to new Yamaha team-mate Maverick Vinales. But does that relationship have a hope of staying convivial when the season starts? 1485475200 MotoGP

F1's ego-driven battle for greatness For the first time in Formula 1 history, two four-time world champions go head-to-head for a fifth title. And with both Lewis Hamilton and Sebastian Vettel in competitive cars, the fight for supremacy should be a thriller. It's one neither can afford to lose, writes ANDREW BENSON. 1524441600 F1

The template for great F1 racing in 2021 Formula 1 doesn't have to look very far to get a clear picture of how to create the close gaps between teams Ross Brawn desires 1524441600 F1

'The standard by which all others in F1 must be judged' Fifty years ago, Jim Clark was killed in a Formula 2 race at Hockenheim. Peerless in his prime, for some he remains the greatest Formula 1 driver ever to have lived. PETER WINDSOR and NIGEL ROEBUCK share their memories of Clark with ANTHONY ROWLINSON and explain why he remains an inspiration to this day 1524441600 F1

Gasly's super formula for Honda success For Pierre Gasly, having Honda power in 2018 means more than just adapting to a new engine. His experience of racing in Japan may give him a technical edge with Toro Rosso's new partner, as STUART CODLING explains 1524355200 F1

How Schumacher and Todt transformed Ferrari From the ashes of disaster rose an unstoppable winning force - but what had Ferrari lost in the transformation? Asks DAMIEN SMITH 1524268800 F1

What F1 can learn from IndyCar's downforce U-turn As Formula 1 assesses what it needs to change to improve racing for its 2021 rules revolution, America's premier single-seater series is an important study in careful car design 1524182400 F1