Thanks -

As for the car I am using as shown in the link - There is zero suspension. Just a drag car. Go fast in straight line on flat area. But sometimes not as flat as I would like though.

Been email back and forth with Frank at Quark Brushless about my setup. I think I will use one of their ESC's in my car but regardless the steering isn't easy at the fast speeds. One small anything and it can wreck pretty hard. So was thinking the gyro would be helpful. Wish I knew someone who had one that I could borrow and try before I buy one.