If it is 1620 ccm for Rally3 as well, then it could happen, but what do we know of allowed 4wd systems in this class?

Toyota GR Yaris - Technical Specifications

  • Type: 3 in line cylinders.
  • Valve mechanism: DOHC 12-valve with VVTi.
  • Fuel system: D4S - Direct & indirect injection.
  • Supercharging: Turbo.
  • Displacement: 1.618 cm3.
  • Bore x stroke: 87.5 mm X 89.7 mm.
  • Compression ratio: 10.5:1.
  • Max. power: 261hp/192kW.