bleh, n2o bottles are not allowed for autox events, you can't even have the empty bottle in the car.

rules it out of consideration for me.

turbo makes the best power, but unless set up right it can come on too strong to be useful for autox, also very expensive.

supercharger is extremely drivable but doesn't make the same top end power a turbo makes.

I like N/A, always there no waiting.