BuzzFeed had NASCAR Monster Energy series drivers William Byron and Daniel Suarez, 20 and 26 years old, respectively, take a California state written driver’s test.

You might think that a pair of the best drivers in the world would breeze through the exam, but both struggled with remembering the basic rules of the road.

Here’s a sample question:

Q: When you are merging onto the freeway, you should be driving: A) At or near the same speed of traffic on the freeway B) 5 to 10 mph slower than traffic on the freeway C) The posted speed limit for traffic on the freeway

The answer is A, which Suarez whiffed on twice.