racer dx i run a yokomo yr12 and it runs very good in stock these cars can take a beating more so than any touring car ! except for an hpi car, man the kids can beat them to death and they run forever. but anyway sounds to me that you might be doing something wrong during assembly or your trigger finger stays full noodle when your car is driving fast straight into the wall . all cars once set up only require small adjustments once youve found the basic setup that works for you. granted there are some situations that are very rare and requires wierd adjustments. some cars like mine no matter what you do to them wont work in certain situations like mine that the chassis is to thin to run on carpet because it has flex built into it for asphalt.