The Toyos are better suited for road course work
because they like heat.  But still, at our local track
(Summit Point Raceway) I have heard that the
Toyos alone are 2 seconds a lap slower than the
G-Forces on light Improved Touring cars like
CRXes and whatnot.  But that's roadracing, not
autocrossing.
I do know that they last a long time, though, and that
is always a consideration for racers on a budget
(like me).
Also, Radial Tire in Silver Spring, MD is a great store
if you are anywhere nearby.  The owner races a Motorola 
Cup Miata and he knows his tires.  His prices are really 
good too.  We get all our roadrace slicks exclusively from 
him.
Jon 
NASA-VA
SCCA-WDCR
 
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