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

Has FE created motorsport's best racing rules? The Mexico E-Prix produced one of the most memorable and exciting races in recent history. It also demonstrated why criticism of Formula E's race format and 'gimmick' rules is unfounded 1550620800 FE

What the FW42 reveals about Williams's plight The 2019 Williams challenger finally hit the track after two and half days of Formula 1 testing had passed by. The new car looks basic compared to its rivals, but it has potential if the team makes the right developments 1550620800 F1

Rating the 2019 F1 grid from trackside With the first Formula 1 test of 2019 already heading rapidly for its conclusion, Gary Anderson headed trackside at Barcelona to see just what the new cars look like in full action 1550620800 F1

How Vettel exposed a key Ferrari culture shift Sebastian Vettel couldn't hide his delight after the end of a first day of F1 pre-season testing in which he was fastest and completed more laps than anyone. His enthusiasm suggests Ferrari's winter overhaul is already having a positive impact 1550534400 F1