stock performance at the track

[Terry]

This is interesting. I have had several ABS-equipped cars and at least one without. In my experience, once a spin is initiated ABS does not prevent the desired lockup. OTOH, if the driver feels the beginning of a spin and tries to lock'em up prematurely (i.e., when the car could still be saved), so that the car is still moving in a straight line, more or less, ABS will prevent the lockup. By the same token, if the car is headed straight for the wall, ABS will prevent lockup, but this is generally considered to be a good thing since you can still brake and steer simultaneously.