"However no tire will handle 168mph sppeeds (sic) for long without
cooking the rubber; the technology for really high-speed street tires
doesn't exist yet."
>>>>>>>>>

WHAT?
Better check your coffee; I think some wiseacre switched it to Dark
Sparkling Folgers's crystals.

If high speed tires "don't exist", explain the black things attached to
the wheels at IMSA races (national Gran Prix, 24 hours @ Le Mans)? Or at
the Indy 500? Or at every rebel-flagged NASCAR race?

Same technology as the flying sleigh that comes around once a year?

These racers routinely hit 180 mph for hours, and are at times in the
200+ mph range. Tires were not the limiting factor when NASCAR limited
carburetion to reduce speeds that were creeping up to 230.

Bringing your ideas to life,

G. Matthew Bulley
Bulley-Hewlett
Business: www.bulley-hewlett.com
AIM = IExplain4u
Phone: +1.919.658.1278