I had the nitrons 'retro fitted' over 12 months ago. A much improved ride. the main difference is that the ride is far more composed. less crashy, less floaty, & far more comfortable. these should be standard fit.
on a side note, I did the AW driver training at Stafford yesterday. max 4 on the course. an old small airstrip. the main outcome was that if you're ever caught out on a tighter than expected bend you can can safely get out of it. I spent a lot of time braking hard into a 180 corner then flooring it out with the tail sliding. absolutely hilarious & im no expert driver but it showed me just how capable the car is. it is a 'sports car'. it was actually quite difficult to lose the rear ,you had to be really abusive. its given me a lot of more confidence in the car, if it slides at the rear its easy to manage. A great day, im sure the nitrons helped in some way, but my newish tyres are looking a bit rough. fun for both boy racers & everyone else.