Driving in a Straight Line: In the penultimate challenge, the drivers must drive in a straight line between two concrete barriers, and must reach 40 km/h at the end. All three contestants will be in the truck in each run. Shelby is the fastest to finish, relying on creeping slowly and then flooring to the finish. Jennifer struggles in her run, but takes advice from Shelby (to simply floor it) and completes the challenge. Jason, wanting to quit again, fails to finish after 70 minutes.
The Mega-Challenge: In the first part of the traditional final challenge, the drivers must combine all of the skills that they have garnered in previous challenges for this challenge. There are four parts to the mega-challenge: in the first part to this challenge, the drivers must start with a peel-out into an abbreviated Eye of the Needle course, before proceeding to an accident avoidance portion. After this portion, they approach the giant pylon, where they must do a half-donut, before parking the car and changing to a standard transmission car for the second part. The second part of the mega-challenge consists of an off-road drive, complete with a hill and slowing/stopping portion. After this portion, the contestants switch to the third car for a precision driving course, which consists of driving forwards into a garage and making a tight turn out of a garage, before proceeding to finish the third portion of the mega-challenge in reverse. Finally, back in the original car, they must accelerate their car in a straight line up to 60 km/h before stopping right in front of the giant pylon. Jennifer is fastest to finish, but Shelby and Jason show the judges that they perhaps do not deserve to graduate.
The Road Test: In the second part of traditional Worst Driver final challenge, the contestants must drive through the streets of Barrie, Ontario in a mock road test. Andrew also stresses that the road test will be done in his own truck. Shelby and Jennifer finish with four moving violations (though Andrew jokingly described Jennifer turning right through two traffic lanes into a Tim Hortons parking lot as just "being Canadian"), but Shelby travels far off course and takes 98 minutes to do a 60-minute test. Jason had by far the worst performance: his fear of fast traffic meant that when merging into Ontario Highway 400, he had ground to a complete halt (as Andrew pointed out, on one of Canada's most dangerous highways). Furthermore, he misses Andrew's direction to turn off the highway at Duckworth Street, and is forced to drive all the way to Midhurst to get back on track. Jason's habit of turning off the motor at every stop is also duly noted by Andrew, as he tries to stop Jason from damaging his car's starter.
At the end of the day, the choice for the final placement was unanimous: Jennifer is clearly not Canada's Worst Driver, while neither Shelby nor Jason deserved to graduate. Jason is visibly defeated and says that he's considering giving up driving, while Shelby admits being disappointed with his final performance, but adds that he intends to continue driving and try to improve on his own.
Though the experts briefly ponder the possibility of naming Shelby as the worst in the hope that both he and Jason will give up driving, Andrew reminds them that the show is about deciding who is Canada's Worst Driver, and the experts quickly agree that overall, Jason is clearly a worse driver than Shelby. Jason is therefore named the worst, and he accepts the decision, along with his driver's license in a clear case, and also confirms that he will give up driving in the wake of the announcement. Because Adrian had left the rehabilitation centre (to make it to his sister's wedding) last episode, Jason gets a ride home from Shelby in the Cool Bus. It is also noted that now that Jason is no longer a driver at all, that makes Shelby now technically "Canada's Worst Driver".