First three goals were quite easy. Goal 4 is fairly difficult, being a speed record where you must stay on track. I'm running 3332211 on upgrades and got past. Speed is not the problem, it's stopping. A trick I saw is that the strip of grass between the wall on the right side of the track going down to the Chase is not 'off track.' So you can just drag the car down the wall to help with stopping. Hope this helps.