i drove the tt in the a league using your setup but detuning everything back to default except the suspension settings and adding a 27/27 ballast weight. i sort of easily won the races gaining 59 points in each one.
the tt is a great car in every occurence.
truly yours: bigracer@holland gt4 currently at 96.4%, >760 cars, >150M cr.
i like german road cars, speed 6+12 and hsc best