Hi. I did a test drive with a ctr yesterday, because I might want to get one too. must say the part is really great. especially on the country road. super suspension. and in the area over 6000 he really burns off a firework. but is it normal that he drives himself in the city sometimes a bit bumpy? now not that he hoops like a kangaroo, but just bisshen bitchy. is that normal with the car? or was with the one I drove, what not in order? how is that with your racing machines?