Listen to this article Ferrari was one of four teams that took part in a two-day tyre test after the Emilia Romagna Grand Prix to help development work for Pirelli’s 2023 rubber. But it has emerged that rivals have questioned whether Ferrari fully complied with the regulations with the way it elected to run with different floor specifications during its one day of testing. The team ran Charles Leclerc on the Wednesday morning, and Carlos Sainz that afternoon, with images showing the two drivers running with different specifications of floor. F1’s tyre test rules are quite strict in limiting what teams are allowed to run, and rivals have been alerted by the fact that Sainz’s F1-75 appeared to be fitted with a new specification of floor (below). A recently revised Article 10.8 of F1’s Sporting Regulations lays out the requirements for teams regarding what parts they can use, and outlaws teams from running new experimental parts. The rules state: “Cars at these tests must only use components of a specification that hav …