My freinds mom had a 3000 GT and he got ahold of it one night and took me for a "spin" in it. It felt quick and nimble, but my Mustang would brush it off in a straight line race. They are fun cars though, sooo much tighter (body and suspension wise) feeling than my Mustang, haha.
Now, on the other hand... a VR-4 3000 GT would kill ya. They are turbo charged (like 320hp or so) and AWD.
Anyway, I think the stock non VR-4's run a mid or lower 15 in the 1/4 mile. A stock 99+ auto GT should be consistantly in the mid 14's, some people have gotten lower 14's stock from them..