having driven a 6sp manual zzt and my Gt4 - i gotta say again that the gt4 is still the better machine ..
it might not be as free revving but it monsters the zzt in everyother dept from what i read from a back to back run
personally - if your in the market for one of these - look at this for an option ..
so far ive spotted 8 st205 Gt4's over here in new zealand for sale all with lowish kms and for under $15k..
id look at privately importing + refreshing one of these over buying a zzt - only drawback is you would need to store it for 12 month or so oget it under private import laws + such