The red side plates were off the TEAM version while the purple were from the WORKS spec. Roller drive shafts and slipper were both available on the TEAM and WORKS cars while that chassis plate was a tuning option from Schumacher and I don't remember it being released as part of a kit. (could be worng though)
The USA chassis was different again. The 8 cell slots from the original release were cut down to just 6, moved forward and closer to the centre line of the chassis.
Here's a pic of mine-
