To meet AP4 regulations, the road car’s aluminum doors and carbon roof were retained. Thanks to the use of a fiberglass hood, Perspex windows, and 3D printed mirrors and hood vents, the GR Yaris AP4 weighs less than 2,711 pounds, which is well below category restrictions. Under the hood, the AP4 retains the road car’s turbocharged three-cylinder engine. To meet regulations, the turbo is limited to a 1.5 bar of maximum turbo boost and is fitted with an air restrictor to meet AP4 regulations.
A power figure hasn’t been released, but the team expects it to be more powerful than the regular GR Yaris, which has 268 hp and 272 lb-ft of torque. Power is sent to all four wheels six-speed sequential gearbox. To help it cope with the demands of rally racing, the suspension has also been modified with special dampers providing 10.4 inches of travel at the front and 11 inches of travel at the rear. The Toyota GR Yaris AP4 will make its competition debut in the Netier National Capital Rally in Canberra, Australia, held on April 9 to 11.