Originally Posted by BGTV8

In the Carrera Cup series down under, 991.2 GT3's are running 1m34s at PI GP Circuit. These are slightly de-tuned from Stephane Ratel Series GT3's (which is the GT3 RS).

In a race event at the same circuit a few weeks ago, a road spec GT3, lightened and with a cage and 5 year old Pirelli slicks driven by a 62 year old amateur driver ran a 1m42s lap.

Which are you comparing to ?

At best, even the most highly modified Z34 with a 500+hp engine is not going to compete against a GT3RS (or a proper SRO GT3) without a shed-load of enhancements (1100kg weight, flat floor, splitter, wing etc)