2025: Week 50, Quiz 4

Here are today’s questions. Answers will be published tomorrow. The theme runs from Mon-Thu:

The 2025 Formula One featured a three-way race for the title ahead of the season’s final race in Abu Dhabi. In the 1981 season, Carlos Reutemann was in the lead before the last race in Las Vegas, with Jacques Laffite also in contention. Which third racer, second on the leaderboard before the last race, finished fifth to beat Reutemann by a single point?
Our 1981 winner from the previous question was in a three-way race in 1986 as well, with Alain Prost eventually winning the season. Which points leader’s tire explosion in the final race cost him the championship?
Who was top of the championship table before a seventh place finish in Abu Dhabi led to him finishing second? Sebastian Vettel, third on the leaderboard before the race, won for the first of his four championships. Mark Webber, who was also in contention, finished the race in eighth place.
Who, leading the points table and in a three-way race with Stirling Moss and Tony Brooks before the 1959 F1 season finale in Florida, dramatically ran out of fuel on the last lap and pushed his car to the finish line to finish fourth and clinch the championship?
[Theme: 4 of 4] What four letter word is used to describe an inflatable torus that forms the interior of several pneumatic tires?

Here are the answers to 2025: Week 50, Quiz 3: