Another situation was me and my buddy where on our way out to the track in his heavily modified sport truck, 4 link, watts link, spindles, eibach, koni, super charged the real deal.
We were putting on a serious clip on Angeles Crest Hwy and a freekin Toyota P/U with a camper shell and whitewalls and hub caps smokes by us. My buddy gets pissed and try's to catch him. After about a minute of this we are losing ground and I remind him its a couple thousand feet to the bottom on the left hand side.

We get to the track and guess what is in the parking lot, you got it, the Toyota.

Turns out it was one of the drivers. He laughed his ass of at us all weekend.