SPEC V vs SE/SE-R B15's

[Lee Combs]

Other than the blatantly obvious power of the 2.5L and
the gobs of TQ, what is it about the suspension of the
SPEC-V that makes it handle better than the SE-R and
SE's with the "Performance Package"?

Spring rates/shocks? 17" tires? anything else? Isn't
the rest of the suspension the same as the other
SE-R/SE's? (IE: control arms, strut brace, etc etc)

Any insight would be great. Seems Nissan doesn't come
right out and say what the difference is, other than
enhanced suspension. What is exactly the enhanced
part?

TIA

Lee (the other one)