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

How Rossi highlights Raikkonen's shortcomings While Valentino Rossi continues to fight through adversity to remain a MotoGP title candidate, Kimi Raikkonen appears more and more of a hanger-on in Formula 1. The difference between the two veterans is stark 1492560000 F1

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

Why Porsche’s black sheep was doomed to fail Green shoots of potential were visible when Porsche raced in Indycars 30 years ago. But politics and technical complexity proved its undoing 1537833600 Engineering

Why Britain's forgotten star is ready for his big chance Alexander Sims's career momentum stuttered when he came up against a now Mercedes Formula 1 driver in Formula 3. Having established himself as a GT ace since, his Formula E drive with BMW is a reward his talent merits 1537833600 FE

How F1 failed Alonso Few would dispute that Fernando Alonso is an all-time F1 great, yet he's also one of the most divisive characters ever to have raced. So as he prepares to turn his back on F1 (for now), should he be blamed for the failure to achieve the level of the success his talent surely merits? Or has he been let down? 1537833600 F1

Does Leclerc deal mean Ferrari is losing faith in Vettel? Could the Ferrari scenario end up like Vettel's final year at Red Bull? Could one single personnel change make a team like Sauber a podium contender? What's the deal with Ferrari's camera device? Our technical expert answers these questions and more 1537747200 F1