>>Personally, if I'm facing a trade-off between fuel efficiency and traction/handling, I'll take the latter every time. With every set of performance tires I've owned, I can think of at least one circumstance where I barely avoided an accident, and I wouldn't have if I hadn't had good tires. "Green" tires might save a few percent in fuel costs, but is it worth it if they can't save you in an emergency?
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>And if you're thinking green, just consider the cost (in money and overall energy consumption) of a funeral/hospital stay, wreck removal, lawyers etc etc. All these would consume about one or two orders of magnitude more than the meager percentage of a fuel saving (ok, I give up: a fuel savings) on these tires would be.

Tyre not tire. Tire is getting tired of people using tire instead of tyre.