This is really your best bet. If you’re looking to narrow down your options, get a car that’s built, well-documented, and is proven. Then you really just have to work on your driving of said car, in whatever class it’s been built for, which, as frustrating as it can be, narrows down your field of variables to just your learning curve.
Yup, that’d be my $0.02.
And top of all of that, that is a damn nice GC.