Dmack new range of UK-made gravel tyres will be available at next week’s Vodafone Rally de Portugal, round five of the World Rally Championship. The British firm has developed products specifically for both world rally cars and R5 specification machines for the first time. The FIA regulations allow tyre manufacturers to change the specification of homologated tyres once during the season. Dmack has taken the opportunity to introduce new soft and hard options of its DMG+2 tyre for both WRC and WRC 2 competitors.