I love this car, except when I go over a speed bump or a rain gully. That is one uncomfortable experience. Now I can eliminate most all of the jostling by leaning forward in my seat so that my back does not touch the seat back. Then my upper torso just rocks back and forth as I go over the bump/gully. Is there any modification that can be done to the car so that I don't have to do this? Thx, Steve.