[Karstographer]

These formula student/fsae cars have aero packages which tend to be designed around 30mph average track speeds, so they will get contribution from that, especially in the latter half of the run. Even so, the tire friction involves both physical interlocking due to deformation and chemical adhesion.

You can see the tire warmers in the video being removed in addition to their approach burnout which imparts additional heat into the tires, so that the tires more effectively stick to the ground.

For all of the questions about why they don't compete with dragster techniques, the student race series they participate in has very strict regulations regarding vehicle layout which forces them to be more of an autocross car, these kinds of (heavily couched) records being produced are really somewhat incidental.