ARCA Sim Racing is based off ISI's game engine, gmotor2, which was primarily designed for road racing simulators, like rFactor, not for an oval racing simulator.
ARCA Sim Racing is based off ISI's game engine not for an oval racing simulator. ISI's game engine is gmotor2. ISI's game engine, gmotor2 was primarily designed for road racing simulators, like rFactor.