Newly-crowned MotoGP champion Jorge Lorenzo believes the front tire of returning supplier Michelin is causing the majority of problems for riders in post-season testing.Several riders crashed on the first day of testing at Valencia, including the day's pacesetter Marc Marquez, as the field got used to new tires and electronics...

Fresh electrical problems prevented the McLaren-Honda development car from running in the morning session of the second day of post-season Formula 1 testing in Abu Dhabi on Wednesday.The MP4-29H was late out of the garage in Tuesday's test, thanks to electrical issues, and completed just two full laps when it...

Stoffel Vandoorne says suspected data-logging problems kept McLaren's Honda development car in the garage for most of the first afternoon of post-season Formula 1 testing in Abu Dhabi.F1 reserve driver Vandoorne completed just three installation laps in eight hours of running at the Yas Marina circuit on Tuesday. Suspected electrical...

McLaren's Honda-engined development car skipped the first morning of post-season Formula 1 testing at Abu Dhabi on Tuesday, due to suspected electrical problems.The team was set to conduct the first proper running of its new engine at the Yas Marina circuit, having carried out an initial run at a Silverstone...