KaiB

OK.

I have no clue.

Vandit

Tirerack says the Hankook RS3 moving from TW140 to TW200 was a sidewall marking change. Compound, construction, etc. remained unchanged.
http://forum.miata.net/vb/showthread.php?t=496031

BGLeduc

I have read that as well. Certainly tells you everything you need to know about TW ratings, eh? I am looking forward to the 200TW rating Hoosier A6. :-)

HalV

I like to run auto-x tires in the snow. I don't trust Blizzaks, Winter Sports, etc. It also makes for a more interesting commute.

964Q

To my knowledge, the 615k and Z1SS share the exact same tire compound. When I used to DE/AX, I was on start specs (integra gsr). 3 DE events and 2 auto-x's (about 20+ runs each auto-x event) + about 8K street miles, the tires still held up great. Given the Integra is a lighter car (2700lbs dry) vs our 964, I was really impressed with the grip and longevity of the Z1SS. YMMV.