What do you think?, possible new to me 01 GT

I've found a few decent low mileage 06 and 07 Prixs. Wondering if I should hold out for a GT or GXP? Premium fuel required on both so an increase in my fuel budget....but the power increase would be good. Anything to look for (problem areas) in these models?

its still a grand prix, so it'll still have the same issue's

v8 wont get as good of mpgs as the v6.

and 93 gas is what another 2-3 bucks per fill up.