That is a good question. There is a couple tracks that are road races where they do turn right as well as left, so maybe they learned something from them when they were on the circuit. Though I am not sure if they did them back then or if that's a newish type thing. But maybe there is more than just the turns that they took from the track as every track has it's own "personality" so to say so maybe they were adding them to their track. Or maybe it was just something to push the plot line along...LOL.