Just an update to this thread (holy thread resurrection batman right?)
Anyway I've been driving all winter with these tyres from Snow, rain and finally some dry weather above 7c!
These out performed the bridgstones, dunlop sport maxx or the Kuhmos I had on and where a lot cheaper than all.
The car drives and handles so much better. The ride is better and quieter!
In the snow and ice I could actually apply the brakes without ABS kicking in when even feather weight tapping the brakes! Accelerating the car in the snow would feel like the car was bogging down almost but when you take it handy there are no issues.
I had to pull out the other day in a brisk form. Halfish throttle from stand still no wheel spin turning the wheel at 90 degrees then with the car half straight boot down no issues at all.
Would recommend these 100%. I had them on my Renaultsport Clio 197 but always assumed the extra torque, power and weight in the 350z would make a difference. I'm happily mistaken!