I raced a Spec V in my automatic 2000 Grand Am GT. It had 50k miles, had never been tuned up (the Grand Am)... ran a 15.58 @ 88.7 mph.
This is a 3.4L V6 rated @ 175hp/205tq.
I pulled the Spec V in every gear from 0-100 mph.
Also, the GAGT weighs in at around 3100lbs.