I used to beat S2000s and 350z's with my standard 132kw. Mk5 will take you.(You in JHB?)
Did the S2000 or 350z driver know u were "racing" them?
The s2000 is pretty powerful... lacks in the torque department tho...
S2000 vs G5 GTI ... its a close race... might depend on the driver, launch, etc...
350Z vs G5 GTI.... 350z will ease away from the GTI quite easily...
Assuming the GTI is standard tho...
My 2 cents...