actually, short of the corvette, the mustang was the best american performance car out there from about 79 till 94...basically the era of the "fox" chassis. till then, the vette was the only american car to take it. that's when ford dropped the ball with the "sn95" chassis. they not only made it uglier, but they made it heavier, slower, and more expensive. not until 2005 did ford make any attempts at bringing the mustang back to something nice, even though they didn't give the 4.6 any noteworthy power.
that being said......i worked on and drove my boss's 94. it was a rough riding rattle trap, and not all that amazingly fast either. it was pretty though.
anyway.....just the opinion of a guy that likes pretty much anything that goes fast, without sounding like a swarm of angry bees.