VITZ,
The 1.16 GTR is pumping out.... plenty. But it's the response, handling and stopping that makes that car the weapon it is - not just the horses.
The S15's I personally think can be a fantastic track car. For a point of reference go and see Donald down at Evolution R for a perfect track S15. He's done a 1.22 around Sandown in his with only around 220rwkw's - but like the racepace gtr has been set-up for response, handling and stopping.