Road Signs: In a test of their road sign knowledge administered by head instructor Scott Marshall, it was found that many of the remaining candidates did not know even some of the most basic signs. Sean, however, did manage to get all seven signs correct, while Colin is the worst, getting only three signs right (he notably didn't even recognize the sign for 2-way traffic).
Driving in a Straight Line: The contestants had to drive forward up a ramp in a straight line, then reverse down the ramp in a straight line. Michael, Sean, and Shannon finish without incident, while Henrietta had to repeatedly adjust when reversing. Jodi's car, however, goes off the side of the ramp. Colin's run was not shown, nor was Karen's.
Driving into a Wall: In this traditional challenge, the contestants are told by head instructor Scott Marshall to accelerate towards a wall of boxes, then brake, with the objective being not to hit them. Colin, Michael, and Sean all stopped before the wall, though Colin pumped his brakes instead of skidded and Sean swerved to the side. Henrietta hit the boxes, while Jodi's run was not shown. For Karen, she had hit the boxes on her run, but when it was suggested that it is because of Scott's instruction (like it is with Allan in the passenger seat), a second run without Scott telling her when to stop led to a much worse result - Karen had smashed through the boxes and kept going. However, the biggest news to come out of the challenge was that Shannon was in fact pregnant, a fact that she told the judges after her run (as the judges reveal afterwards that they would not have let Shannon make her run had she told them about her pregnancy beforehand).
Packing Up: In this challenge, the contestants must properly pack items in a station wagon situated in a campsite, and, after reversing out of the campsite, proceed forwards with another car blaring its horn behind them (in each run, Andrew will be driving this car). The drivers then find themselves between the car and an ambulance, and must soon reverse to clear the way for the emergency vehicle to pass through (the chase car will also reverse to make room). For this challenge, drivers are paired with different nominators to see whether their overbearing husbands impact Henrietta's, Jodi's, and Karen's driving abilities - Jodi is paired with Jeremy, Karen with Eric, Michael with Sam, Colin with Sara, Sean with Allan, Shannon with Andy, and Henrietta with Melena.
Fastest Performer: Sean finishes the fastest by finishing in 2:55, but also managed to impress the judges when he was forced to repair the car (thinking that this was part of the challenge) when its battery cable came loose a result from Colin's run immediately before his. Also notable is Shannon's run, where she chooses to pull over in reverse (meaning that she did not back up at all).
Slowest Performer: Henrietta and Melena, not knowing how to open the car's rear door, pack their items to leave virtually no visibility, and as a result gets their car stuck as the ambulance nears. Of all the contestants who do finish, Jodi is by far the slowest at nearly 30 minutes. However, Michael and Colin finish their runs with ticketable offences: Michael because he had accidentally left a first aid kit on the roof of his car and forgot to pack it before starting his run, and Colin from sitting on the car door with half his body outside of the car while trying to impress a clearly bemused Sara, and not wearing his seat belt until the road rager "cop car" scares him to wear his seatbelt.
Driving Distracted: Because the challenge was so effective on Matt in the previous episode, the same challenge was done again for other contestants (Henrietta and Jodi being exempt). Here, the drivers had to drive three laps around a narrow track while putting a CD into their car stereo, eating a sandwich, drinking Gatorade, make a phone call, and putting on lipstick. Sean and Michael both stated that they wouldn't do these things while driving, while Shannon is grateful for the lesson due to her pregnancy. Colin refuses to acknowledge the lesson, but manages to knock fewer obstacles (five) than most of the others (Michael had the fewest with three). Karen, being the wife of a police officer, makes the note that she would report anyone who tried any of this to the police.
Canada's Worst Gas Station: In this musical chairs-like challenge, the seven drivers have to manage to find spaces in six pumps at a makeshift gas station with two entrances. At the start, three pumps are occupied and three are empty, with the three cars in occupied pumps serving as obstacles - one car (driven by Scott Marshall) will back into a parking stall before leaving, while the other two blocker cars will repeatedly leave and enter the same pump until their spaces are occupied. The seven cars are initially arranged in a line, with Karen and Henrietta on the outside, with Jodi and Michael next to them, while Sean has the initial disadvantage with his car in the center, with Shannon and Colin on either side. Despite the initial disadvantage, Sean finds an opening, beating Jodi and Shannon to one entrance. Karen, against her husband's advice to secure one unoccupied pump, manages to secure another one. Sean would fill the space that Allan had pointed out, while Henrietta secures the last vacant pump. Scott's departure allows Shannon to secure a pump, though in leaving Henrietta is forced to move her car slightly. Jodi could not beat a blocker car to the pump, although she manages to take the pump vacated by the other blocker car (despite some parking trouble). Colin was left the odd man out after allowing Jodi to take the spot at a pump that he had already been sitting in when he saw how much trouble she was having with the exercise. After numerous block attempts against Colin from the 3rd party drivers in the exercise, Michael finally managed to take the final spot.
Colin's behavior to Michael is brought up by a miffed Andrew, but Colin just brushes it off believing he deserved that spot as a reward for helping Jodi. In deliberation, Scott and Cam are up for graduating Karen from Rehab since she's shown great performance in the Camping Challenge and the Gas Station Challenge, and her in car relationship with her husband has improved. Marcus and Juliana however believe Michael should graduate since he has better driving skills and Marcus brings up the fact Karen ran thru the wall in the Wall Challenge (even though she stated she learned the lesson afterwards). With a 2-2 tie between the judges, Andrew decides that Karen is the next graduate, and gives her back her keys, becoming the Second Graduate of this season.