Expansion pack for PitchCar Mini. It contains two ramps, two straight sections with no jigsaw edge on one end (for a figure of eight track), a straight chicane and four corner chicanes.
Note that there are two editions of this extension. The older edition, as pictured below in the plain box with photocopied label, only contains one jump. The single jump is the same size and shape as both of the jumps from the later edition (in the bright yellow box) placed side by side and has jigsaw edges on both ends. As such it is really more of a steep hill than a jump proper.