I also had an S Type R..think I had continental sport contacts on it and found it much less likely to slide the rear than the z even in sport mode. I think it comes down to tyres but also clearly one can change up earlier and not accelerate so hard and the z won't slide at all.... I love my z but often miss the Jag...was a great place to sit and a great drive even if it was a bit old fashioned inside and out. Heated screen, auto lights, touch screen nav and memory seats, pedals and mirrors were nice (not so old fashioned maybe!)..plus the auto box in traffic.