There is an interesting twist to this challenge. All of these cars are pretty good with just a base tune applied. The car that I was allocated felt really, really good with just my base tune applied. I drove it in two, 5 lap races, made a total of three minor changes and it feels awesome. Notice that I said "feels." Is it as fast as it can be?????? There is the difficulty of this competition. When the car feels great, with settings more toward the middle, rather than toward the ends of the sliders, it will be really easy to "over tune" the BMWs. So after ten minutes of driving, I have a tune that can be pushed really hard and it is not super easy to find the limit. The sad part is, that I know myself so well, that I just know that I will end up over tuning this car.