You made that last course look too easy, so I've set up a circuit with 4 of the most difficult turns I could think of. Good luck, you're going to need it!
Try to climb over the obstacles made from concrete pipes. To get over it, you can lock the front and rear differentials. This will force the left and right wheels to rotate at the same speed, letting each wheel apply as much rotational force as the traction under it will allow.<br>Additionally, you want to set your rangebox to low mode, giving you a lot more torque on the driveshaft, but lower top speeds.