It's no big surprise that there will be trivia and a geography test on the forth lap. The details of the trivia and the countries that need to be studied have yet to be unlocked, but the punishment for failing the geography test will now be revealed.
It's a good thing that the team has unlocked the easy cards (dice) perk. Because failure to complete the geography test will result in five dice rolls being done at the end of the forth lap. Get it right and all of the 'dice debt' that's accumulated from failing previous trivia questions will be completely erased.
No T3 in the past has ever gotten the geography test correct.