I guess that is Clay's decision to make. Is the 10K worth it to him?
He's also looking at convertibles, last I checked Vert Termi's weigh about 18,000lbs and aren't exactly going to blow the doors off of much.
If he's just looking to cruise around with a loud pipe'd V8 with the top down, who cares how much power it has?
Old School M/T Article:
http://www.motortrend.com/roadtests/oneyear/112_0405_2003_ford_mustang_cobra/viewall.html
0-60 mph, sec 4.9
1/4 mile, sec @ mph 13.12 @ 109.58
Not bad I guess.
01 Cobra:
http://www.caranddriver.com/reviews/2001-ford-svt-mustang-cobra-road-test-review