With two people, go to coagulation with heavy vehicles on random. When you get both a wraith and a tank, have one person in each and get right next to each other. With the wraith, get point blank to the tank and to the turbo, it may take a few tries. It usually works best if you go head on and get slightly under the tank. I did that and the tank flew around the map for a good 5 minutes, and it looked the a little mini version. Sometimes if it doesn't go in the air and it stayes on the ground when it spins, it looks as if its trying to break dance.