One of the most exciting models ever released by Porsche, the first 911 GT3 was introduced in 1999, based on the then-current 996 coupé, suitably modified as a contender in the FIA GT3 championship category. Successive iterations of the 911 GT3 – the 997 GT3, 991 GT3 and present-day 992 GT3 – were similarly adapted from the contemporary production-line model, with mechanical and aerodynamic upgrad...