Uncle Will's Full Throttle Z Scale Line. The Full Throttle z scale line is always offering something new in z scale. You will notice several things about the Full Throttle z scale line right away. Interesting rolling stock modeled and modeled accurately, the interesting subjects offered, and very well detailed cars with sharp detailed printing. The packaging on these car sets is very nice, hard plastic cases with details of the prototypes. You also need to take not of the fact that most of the cars are produced in limited quantities. If you see a car set that catches your eye, grab it while you can! Some of the sets sell out very quickly. (I know I have missed a couple of sets!) Sign up for our mailing list, we will let you know as new offerings in z scale cars are offered by the Full Throttle Line.