Yea your right.. I just found this on Wiki:
A Competition Group (Comp-G) package was available for the GTP that included red painted brake calipers (same brakes as the 'standard' GTP), sport tuned suspension, heads-up display (also in GT2 model), 4 speed automatic transmission with paddle-style TAPShift, StabiliTrak dynamic control system, 3.29 axle ratio, performance tires and Magnasteer II. Also, a 10 spoke light weight wheel was standard with the Comp-G package but could be 'upgraded' to the GTP optional wheel.
So, the ten spoke rim is probably the stock Comp-G and these rims are the optional GTP rim.
