I'm off Monday, so I can help test
reveal some details of what you are planning
I have a plan for a one off endurance race that I'd like to do. It would technically be multi class, but I want the classes to be the same speed.
As I have found, the KTM Xbow Street '12 and the Super GT300 cars are roughly the same speed, both at stock spec, I believe. I'd like to confirm this with multiple drivers. I think it would make for an interesting race over the long haul. GT300s have the downforce and the power, the KTMs are half the weight, but are less predictable.
If this works, I'd have two classes set to go. I
might have a third class as well, but I'm going to hold off on that for now.
I don't have the specs at the moment, I will post those somewhere for you guys soon. But if I remember correctly, the KTM Street is at stock power and weight, with an oil change, and has all suspension, transmission, and drivetrain mods on it. The GT300s should be completely at stock power and weight, with an oil change. Except for the RX - 7 GT300, which has 50kg of weight added to it.
If any of you guys can make it, bring whatever and we'll take it from there.