Yeah, there are plenty, but none of them are particularly good. You're better off trying to work on your own setup.
Indeed you are, then you are able to set it to your own driving style.
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I ran a open setup practice session yesterday in the Prototype and GT Challenge. It was fun, I had some little battles with Nick Thissen, Tim Claessens, Paul Ilbrink and some others. Seemed to be the fastest practice session yet with the top 3 drivers all in the 22's in the HPD. Paul Ilbrink ended up getting the fastest lap in practice with a 1:22.085. I hooked up my best lap a 23.2 which ranks me 8th in the world in practice lap times.
Hopefully I'll hit the high 22's today but I can't see myself getting anywhere near the low 22's, or even the high 1:21 laps that have been posted in qualifying.