The team have also been issued a 10 per cent reduction in wind tunnel testing and CFD development for next season. It came after the team were found guilty of exceeding the allowance by £1.8million ($2.2m). However, the FIA accepted the breach would have been just £432,000 ($0.5m) if the team had submitted their tax reports correctly. Red Bull team principal Christian Horner was spotted in talks with FIA President Mohammed ben Sulayem at the United States Grand Prix. Horner is also understood to have held talks with F1 boss Stefano Domenicali in Austin. Talks between the FIA and Red Bull were put on hold after Mateschitz's death. DON'T MISS Helmut Marko calls out Sergio Perez over Max Verstappen claims [INSIGHT] F1 fans decide on Hamilton or Verstappen superiority as record broken [ANALYSIS] Max Verstappen and Red Bull's Sky boycott splits F1 fans [COMMENT]