Depends on which gt you are talking about. A foxbody gt can weigh as low as 3000 lbs where as a 2010 gt can weigh as much as 4500 lbs.
2997#
28lbs
3000 lbs.
Mongoose thrive 2011 their worth the price
It depends on the cost of the gt.so the 2011 mustang GT cost about $45,000
about 2900 pounds
It Depends.
http://home.xnet.com/~paulv/MajorSpecs.htm Fiero Specs!!! 87 GT 2,708 pounds.
412 hp
The 2011 Nissan GT-R's engine produces 434 ft-lbs. @ 3200 rpm.
You would have to refine your answer because they weigh different by years and model and trim level.