Even though the Skippy in rF2 and the Formula Vee in AMS are challenging cars to drive, they remain the most appreciated in my years of Sim-Racing. Master these cars and driving everything else becomes considerably easier to the point where you may find yourself seeking out the tricky ones. Both the Skippy and Formula Vee get the most wheel-time and I try to drive them at least once a week. They are my go-to cars for testing changes to my controllers also. The wheel being used can be a factor in how we perceive grip / grip-loss as well but, as always, it's relative to what one is used to. The more detailed the information by which to judge the limit of control, the better defined that becomes and balancing on a razors edge becomes one's favorite past time.