I borrowed a mate's Litchfield-tuned GTR for a few days last year. It was running 650bhp and was incredibly fast, handled well and stopped as it should, although the ride was very hard. After 3 drives of the car I handed the keys back and vowed never to drive it again. I found it provoked a dangerous attitude to driving for me - knowing there is so much power available made me consider every overtaking manoeuvre possible when others were impeding my progress. Perhaps it was the novelty, but it was hard to resist going fast (within speed limits on all roads, of course!) whenever possible. Whilst the GS (and Ghibli to a certain extent) is a very quick car and has more power than is needed for the road, I'm always reminded that the brakes aren't brilliant and the back likes to let go when provoked. The GTR instils a sense of immortality - never good when behind the wheel!