In part 1 of our review of the new 493bhp Porsche 911 GT3, we test the new hardcore supercar on track at Anglesey race circuit. Is the 991.2 version of the GT3 a facelift to be forgotten, or a proper step forward and a GT car to worry 911 GT3 RS and 911 R owners? It’s over to DRIVETRIBE’s Editor-at-Large, Jethro Bovingdon…