My thoughts. Keep in mind that I drive a ford, by dad has a firebird, my brother has a cobra, my uncle has a saleen, and everybody else in my family drives sportscars.
I like mustangs. They are sweet cars.
F-bodys are sweet cars too, but they dont look as cool.
From a performance standpoint, a Mustang and a Camaro/Firebird are very simmilar at EQUAL TRIM LEVELS (Stock-stock-stock, gt-z28-t/a, Cobra-SS-Firehawk)
The real beauty of these cars is that there is a world of aftermarket performance like no other cars in the world. THe riceboys think their Civics are cool beans, until they see the VAST and INEXPENSIVE performance options they can get on a pony car.
A Cobra-R can run with Corvettes and Vipers, but it at that point, its a race car, and not something you would drive to work like a vette.
Aftermarket Mustangs are just plain cool. I would take a Saleen S351 over a Vette or a Viper any day of the week. They are FAST.
So if you are looking at performance, and you say, "A viper is better than a Mustang!" you will be met with a wall of "No shiot sherlock!" But what do you expect from a car that costs THREE TIMES AS MUCH?
The original question about the Jaguar Race car though
Its a cool car as long as you arent racing it with other cars that are in its class. I cant beat the Professional GT Allstars with it, but then again, you're racing against a GT-ONE and a 787B, what do you expect. I can trash honda civics in it all day long.
haha but what do I know? i just think the viper would have one, but then again, if the mustang had not 1 but 2! racing stripes, he would have won, cause as we all know, those add 200HP to the rear wheels 
