For the street races, get a strong car with good acceleration and a decent top speed. Go to the Speedway Left or Right. Instead of driving forwards and trying to win, turn around so you are driving in the wrong direction. Hit as many cars as possible. Note: You must unlock the Speedway Left. To do this, finish at least third place on the Street Wreck cup. For more money, try to concentrate on one driver to get the wrecked bonus.