I have both Chaparrals, the Toyota 7, the GT40 and found it wasn't which car exactly, it was the right car with the right driver. I found a driver with a cool personality will win with the 2J Chaparral with the mid turbo if you leave him alone. On the Cote you must just wait him out. He needs to avoid the jog after the long tunnel, or he will crash. But wait him out he will pass even the lead 2J. Be patient grasshopper. On the other run a hot personality will spin out at the first turn and at the S curves with the short tunnel. He will not stop it. But do not fear at the last lap or two a cool head will prevail.