FIA single seater director Nikolas Tombazis says getting a handle on costs has been a big area of improvement over the most recent era, but acknowledges some technical aims remain to be achieved.

The FIA has delayed the publication of certificates of compliance relating to the 2021 financial regulations until October 10 after missing today’s self-imposed deadline.Formula 1’s governing body had originally stated it would issue certificates to teams found to have complied with the budget cap on Wednesday, following months of analysis...