A pre 4.6 Mustang GT had approx. 260 hp and weighed in around 4,400 lbs. A newer model with the 4.6L stock was 300 hp. The first model stangs to get the 4.6L were still quite heavy in the 4,200 lb - 4,500 lb range. The latest body style, retro '70's look, averages around 3,500 lbs.
If we're comparing '04 - '07 crossfires,non srt6, weighing approx 3,200 lbs with 219 hp with a '95 mustang 5.0L automatic you may have a close race the stang will still be at 100 mph before the crossfire though. Any race against a manual tranny in the 5.0L against the 219 hp crossfire and the GT will win.
I have 3 mustangs in the garage.
'70 with a 302 boss (stick of course)
'95 5.0 stick
'07 4.6 stick
Although the newer stang is considerably faster than my '95, the '95 will take the stock non srt6 crossfire in a straight line.
I should also mention I have a '05 crossfire srt6 with 1,100 miles. That unit destroys my '07, '95 and '70 stangs.
This is not really rocket science. Bench racing as someone mentioned earlier is a fairly accurate method on making comparison in vehicles. hp to weight ratios are used regularly and are accurate within a 1-2/10ths in most cases.
As far as handling, the mustang can not take corners well at all. It is not classified as a sports car, it is classified as a luxury car by Ford. Any crossfire will win a road race involving tight corners.
check this site out for an explanation of the 0-60 times and bench racing as it was called:
http://www.cars-cars-cars.org/Car-zero-sixty-Times.htm
for a good 0-60 calculator try this one:
http://www.060calculator.com/
Horsepower
(at the flywheel): hp
Curb Weight: lbs Drive Type: FWD RWD AWD Transmission: Manual Automatic
Power / Weight Ratio: 0.103125
0-60 mph: 4.593724553243623 seconds
Say it equates to 4.6 add a tenth or 2 and 4.7 is still very fast for a srt6.
That assumes the srt6 only has 330 hp. I'll know for sure next month. It will be on the dyno in the beginning of October.
Leadfoot likes to go fast!