Of the 200,000 aforementioned examples of 997-generation Porsche 911s, the majority filled all the usual segments of the range from Coupés, Cabriolets and Targa models, rear or all-wheel drive to, of course, the Turbo and Turbo S. These were the volume models, but Zuffenhausen also built smaller quantities of its GT3 and GT2 911s. For owners keen to take their GT3s to the track, there were lightened and aerodynamically more sophisticated RS versions, the final edition coming in the shape of the revered 4.0 litre RS. To mark the end of production of its turbocharged GT2, Porsche applied much of its expensive RS methodology to a final run to create the unprecedented GT2 RS which, if nothing else, will surely take the prize as the fastest manual transmission production supercar…