991 GT3 RS
Lovely though the 997 GT3 RS was, there was a sense among the Weissach boffins that greater differentiation was needed between the ‘standard’ GT3 and the RS offering. So when it came time to do an RS version of the 991 GT3, they went completely mad. Instead of a tweaked version of the GT3 engine, it came with its own 4-litre, 493bhp motor, and the most aggressive aerodynamic package yet seen on a GT Porsche. It’s quite good on the road, but simply off the scale on the track: not the easiest, but one of the most rewarding Porsches of all time.