My guess is, one of them saw this being done with foci and said, why not try it ourselves. It's actually pretty cool that they do more than just sit in a parking lot and let folks actually see those things driven.
Somehow I think they probably get much more respect for a line of lambos than a line of foci.
I've seen this happen around LA around the time of shows. I forget the name of the show but it's yearly & every year they "feature" a different manufaturer...I've seen Ferrari and I think it was Jag... Very aww struck...wow
Wait some of those are the new one..what is it...not the Murcielago the new one....grrr