holy shit did this thread blow up....i dont see whats up for discussion here, i mean its totally obvious that the 4G63 platform performancewise blows the 420a out of the water in every way shape and form...period, the gs and rs were put out there for someone who wanted the look but were willing to give up the performance for lower cost (or they were buying it for their teenage daughter)...and you get an AWD option with the turbo model, sweeeet!
anyone who truly believes that the same amount of boost on a 420a against the 4G63 will result in the 420A winning, i will gladly take on any 420a car running at least 11 psi of boost (thats the lowest my wastegate will let me run) and prove that null and void real quick