Let's bring some reality to this discussion.

On Saturday, the ITS BMW started 3rd or 4th, pulled the field at the start, and ran off and hid to the tune of a 12 second victory.

On Sunday, the ITS BMW got around the ITS Mazda on the pole at the start with some contact. It then went off in Turn 1/2 complex and the ITS Mazda took the lead. The ITS BMW ran it down and passed the ITS Mazda. At this point, the track was hot, slick and tires were going away. The ITS Mazda nearly passed the ITS BMW at the s/f line but the ITS BMW took the win and swept the weekend.

The ITS BMW I assume was running last year's FP restrictor. I see above that they claim they can't get more than a 1:24 out of the car with the SIR. That would be fast enough to run 3-4 place in that field.

The ITS Miata and an ITA Miata ran very fast times. Roebling, as noted above, is a Miata friendly track with one power section. SMs run 1:24 now there.