unless our car came with 6 speed and you changed the gears because even if our cars were 6speed, I think we would only hit 200 at most, maybe more. Hmmm...I think our Z's our would top out at 186mph and that's at 8k rpms(redline). You would have to be at 10k rpms to hit anything close to 200. Our Z's have enough power to hit 200mph just not enough gears. -Jeff