Pretty sure this is the same team, this is from the 2005 PVGP pre-races at beaverun.
And yea Eric your estimate on the F1 cars is probably pretty close. The fastest things to ever go around beaverun are Forumla Atlantic race cars. They have all the same qualties just in smaller amounts (less tire, downforce, power is 200-300 I can’t remember). But the fastest of those lap in the low 50’s.