Question: The 2009 FIA GT Zolder 2 Hours is the eighth and final round of what world championship sports car racing series developed by the SRO Group and regulated by the Fédération Internationale de l'Automobile (FIA), held from 2010 to 2012?
Sentence (from "FIA GT1 World Championship"): All cars were performance balanced with weight and restrictor adjustments to artificially equalise their performance.
Relevant evidence: No