With Mariah Carriere being named the latest graduate, there are four nominees left in the running to be named Canada's Worst Driver. Their first challenge is to do a straight reverse one kilometer in length, the longest reversing challenge ever on th... (more)e show. There are several sections, the side barriers made of different materials and the lane being differing widths throughout the course. The nominees are told that it is a race, that they are to complete the course as fast as they can. Most do not however realize that success still entails not hitting anything. Tim holds himself ...