Great work! I have only tested Ferrari so far and it was a blast to drive. I have only one concern, the BOP might be unbalanced, in two races I tried Ferraris were dominating the Porsches in qualifying, the grid was pretty much upper half Ferrari and bottom half Porsche which is a bit boring. Maybe I'm the one doing something wrong? I tried Monza and then some a bit more twisty track (can't remember the name, it was one of the less known ones) The quality of the mod is amazing though, 5 stars well deserved still.
The Porsche too, I think the way these cars drive is perfect, it's what makes the mod very good.
Thanks for the review!