This is not nearly as crazy as you describe but it is still very fun and quick! I preferred to go a more traditional power and transmission tuning (MotorCityHami's) route with this. I found that I could post quick times much more consistently. I've tested 3 tunes by well known tuners for this car at the Brands Hatch Seasonal. All 3 were great and I imagine that they all could be the fastest based on the track. This one seems like Tsukuba or a similarly twisty track might be its home.
