National rallying competitions also allow Group Rally3 cars to compete.

There are three technical subclasses of Group Rally3 however these do not affect competitive eligibility so 'Rally3' may be used alone with the same definition.

[2] Cars have a 31mm air intake restrictor, a maximum power-to-weight ratio of 5.6kg/hp, and a rally-ready price cap of €100,000 plus taxes.

[3][1] The subclasses are based on engine cylinder capacity in common with existing Group Rally4 classes, allowing for possibility of upgrade or sharing of many components with a Rally4 car.

Weight Capacity Cylinders Restrictor Gravel Asphalt Requirement Rally3 cars are placed alone in FIA 'RC3' sporting class.