In this final episode of the series, the remaining three face some of the biggest challenges in the show's history. First, our atrocious trio attempt the Reverse Serpentine Challenge. It sounds simple enough, and it should be, except for the simple fact that these are the absolute worst of Canada's worst drivers. Then it's the Mega Challenge - which combines the most challenging aspects of every course our drivers have faced across the series. Finally the drivers take their final exam: a drive through the City of Toronto during rush hour, with Andrew as their passenger! Watch this exciting final episode to find out who escapes national humiliation... and who is finally named Canada's Worst Driver.

• Andrew Younghusband