Here is my newest modeled car, an AUDI R8 V10 Spyder. The body was made in the guide-technique. For the wheels i used two cylinders and two shrinkwrap modifiers. Making the hole for the tank cap on the right side of the car (the mirrored side) I have used a special gimmick. Perhaps you can find it. Because you can see all the tricks I do not applied the whole modifiers (wether the mirror nor the shrinkwrap or boolean ones). That is the reason why the car can not be animated. There is only one wheel, the others are made with mirror and array modifiers. In the first layer is the body, the second layer has the wheels, the third layer hosts the roof of the car. In the fourth layer are the enviroment, in the eleventh layer are the guides. I hope you have fun with this peace.