Freeroam - airport drag event - start.
Takes up to a minute (the race itself 30 seconds).
Repeat it 25 times and you're done 👍
You can also unlock another achievement simultaneously as you race in that airport drag event in every class of car (D, C, B, A, S2, S1, X).
You can do it as you blueprint that event and make sure it's set on every car eligible with no specific class.