The payments are kept simple - a monthly cost, preceded by an up-front payment (which is usually a set number of months of the monthly charge - 3, 6 or 9).
Things to look out for are:
It's common knowledge that vehicles depreciate so for those concerned about the residual value of their vehicle, not having to worry about this is an attractive prospect. Essentially you do not own the car, but you are leasing it from a leasing company. In fact, Contract Hire is often referred to as Vehicle Leasing.