Originally posted by RCFreakInFL
The technology put into the TC3, is a newer concept, than that of the Pro2. HPI is already out with the RO4 (Pro4) now....which improved greatly upon the Pro3, and which the Pro3, did the same with the Pro2.
Parts are going to be growing scarce with the Pro2 shortly (if not already), because the factory makes only so many extra, and molds get destroyed, and then you reply on aftermarket companies to keep the parts in stock, which all goes with supply and demand....see where I'm headed here 
Good luck!
I don't think the pro 3 was an improvement on the pro 2, i think it's insanely worse. It's just a terrible design in my opinion. Center mounted batterys dont help handling and it makes the drive train really screwed up to have the bayys there. Also look at the insane suspension arms, I know they dont alter geometry being bent but it does make them less stiff. I dont like any feature of the pro 3. But back to the original question from the thread starter, the pro 2 is a fine car. It's lighter than the tc3 which is a plus. I have a pro 2 and an xray evo 2 and the evo2 handles slightly better. Both are very well tuned though. It is a bit of a pain to adjust anything on the pro 2 however, and I agree with rcfreakinfl that soon parts will probably fet hard to find, although they havent yet for me. If you dont want to mess with trying to tune the pro 2 better, ditch it.