The problem here is mostly computational cost. Simulating finer grained details needs a proportionally higher tick rate. In this case although the engine sim se

The problem here is mostly computational cost. Simulating finer grained details needs a proportionally higher tick rate. In this case although the engine sim seems to be 2D and the gas sim 1D but both would need really high resolution to output sound synthesis. Driving games for now are largely putting that work into tyre dynamics as it’s such an integral part of the driving experience. Maybe there’s head room to do this x number of cars on the track but I don’t think it’s a foregone conclusion that they can just slap in a similar simulation.