The Forward and Reverse Challenge: The final regular challenge of the season places all three drivers in the 1972 Cadillac Coupe de Ville at once, with the drivers each having to drive forwards and then backwards through a slalom of foam people within 45 seconds, something which Andrew just barely manages in his demonstration. Tyler immediately gets the forward section right, but struggles a lot more while reversing, ultimately taking until his ninth attempt to register a pass. Daniella starts out similar to Tyler, managing the forward section without difficulty, but doing poorly while reversing, and being further hampered by Krystal's laughing at and mocking her errors.
Tyler takes offence to this and demands that she swap seats with him, and all three nominators are just as offended, eventually leading to Jana confronting Krystal, who responds by hurling abuse and obscenities at everyone present (Andrew included) before storming out of the challenge. Despite Krystal's departure, Daniella initially doesn't do any better, but does manage to get it together and pass on her eighth attempt.
Krystal is persuaded to come back and attempt the challenge, but has to be accompanied by Andrew, as no-one else is willing to accompany her (in fact, after Daniella's run ends Steven is never seen or mentioned again for the rest of the episode, although it's stated he didn't want to look at Krystal for awhile, and makes a cameo at the end). She subsequently fails to make a real effort, and never comes close to passing the challenge. Andrew states that Krystal would have been named Canada's Worst Driver if the challenge decided the title.
Mustang Challenge: The Mega-Challenge: For the final time this season, the drivers are placed at the wheel of the Mustang and tasked with completing this course which combines several key skills, starting out with an Eye of the Needle/Slalom combo, then driving forwards and backwards through a long corridor of wheel rims (while turning the car around in some concrete barriers midway), then carry out a Reverse Flick, before driving through a short second slalom and finishing the course with an Icy Corner. Tyler is first-up, and turns in what Andrew notes is one of the best Mega Challenge performances in the show's history, with only a single mistake (knocking down a set of wheel rims while reversing) committed during his run. To reward him for such a good performance, Andrew gives him one of his trademark shirts to keep. Krystal, who is again accompanied by Andrew, nearly manages to go one better than Tyler, flawlessly passing every part of the challenge up until the Icy Corner, but ruins an otherwise perfect run by oversteering and braking too late, causing her to go through the wall.
Daniella's run proves to be the worst, as she hits one of the foam people during the initial straight, knocks over several wheel rims in both directions, spins the wrong way during the Reverse Flick (taking out one of the walls of the turning area), somehow manages to tear off the Mustang's rear bumper during the second slalom, and ending by failing the Icy Corner.
The Road Test: As with all seasons of the show since Canada's Worst Driver 7, the show's decisive drive takes place on the streets of Hamilton, Ontario, with a short drive on Highway 403. Tyler is up first, and commits several errors while driving through the city, including running red lights, making unsafe, illegal turns, and nearly failing to get onto the highway, which he only remedies with an extremely unsafe lane change. After getting onto the highway the rest of his drive goes without incident, but he ultimately racks up six ticketable offences. Daniella's drive up until the highway is virtually flawless, despite running a red light early on, but she ultimately crumbles while on the highway, to the point where she becomes so nervous and indecisive that Andrew has to guide her through every single decision she makes, something which persists even as she re-enters the city and takes Andrew back to the starting parking lot.
Krystal's run is last, and by far the worst of the three, as she drives in an aggressive and highly unsafe manner throughout, often driving as much as 20 km/h over the limit, making illegal turns (one of which damages the rental car's wheel hubs), racing against other drivers and cutting them off, making lane changes without signalling or using her mirrors, and generally being hostile toward Andrew.
The final straw comes when Krystal responds to Andrew's requests to slow down by deliberately taking a corner at a dangerously unsafe speed, after which she insults Andrew again and openly declares that rehab has been a waste of time. After hearing this, Andrew decides that enough is enough and, for only the second time in the show's history (after Canada's Worst Driver Ever), calls a halt to the final drive. He gets out of the car and tells Krystal that she will absolutely be named Canada's Worst Driver, to which she replies by flipping him off and driving back to the parking lot without him, forcing him to hitch a lift with the camera crew.
In his final meeting with the experts, Tyler confidently declares that he is not Canada's Worst Driver, while Daniella admits that despite having improved as a driver she still feels far too nervous to drive on the highway. Krystal, meanwhile, remains defiant until the end. Ultimately, the experts agree that there is no need for a discussion over who is the worst of the final three; while Tyler made some major errors on his final drive, and Daniella's dangerous indecisiveness on the highway may have caused her to be named the worst in many previous seasons, Krystal is agreed to be obviously the worst for her hostility and refusal to learn.
At the usual trophy presentation, Andrew says that he and the experts decided that Krystal (while not yet naming her the worst) did not deserve the traditional trophy awarded to the show's "winner," due to her failure to take the lessons to heart. Instead, the trophy is turned into a "Final Graduate" trophy and awarded to Tyler, who becomes this year's final graduate. Though Andrew notes that his final drive proves he still has a lot to learn, he also congratulates Tyler for having turned himself around during the course of the season.
Daniella fails to graduate, as she was ultimately unable to drive on the highway unaided, the one thing she wanted most out of rehab, and leaves disappointed at this outcome. Krystal, therefore, is named Canada's Worst Driver, something which she happily shrugs off, before flipping off Andrew when he turns away from her, and then checking her phone as the episode ends.