Vehicle Top Speed

So I have been playing with the RPMs and the Torque cuvre and making adjustments to tire settings. No matter how i adjust these setting I cant seem to get an engine that breaks 150MPH I would like to get it closer to 200MPH if possible. I know a lot of things factor into this as its suppose to be replicate more real world physics.

If anyone had some base settings that produce speeds this high I would love to hear your set up and what kid of vehicle you are emulating.