For the last five years competitors in the World Rally Championship have been free to compete on any brand of tyre registered with the FIA, and newcomer Dmack has shown itself to be a worthy competitor to factory team supplier Michelin – at the start of this month, the brand secured its best ever WRC result and first podium finish. The days of open tyre competition may be numbered, however. Autosport.com writes that the WRC may return to a control tyre for next year’s season.