Here we answer one very simple question - which is fastest? A Nissan GT-R Track Edition, or a Porsche 911 GT3 RS. So which will win? The 542bhp GT-R with four-wheel drive, or the 493bhp Porsche 911 GT3 RS with rear-wheel drive and a rapid fire PDK gearbox. Porsche 911 GT3 RS review: http://www.evo.co.uk/porsche/911-gt3-rs Nissan GT-R review: http://www.evo.co.uk/nissan/gtr