i mean i would love to have an f-430 scuderia, and seeing as it beat the enzo and perty much everything on nurburg i would say it is better than a gt or any any any amg, but the cost of the car and the cost of ownership is ridiculous, as is the e55, i really dont think he is looking to by a "racecar" and if he likes the look of the gt it has more horse power than he will really ever "need" so why pay so much for an e55 just because it can do 11 second runs.
practicality says by the mustang, i wouldnt buy the mustang but i cant afford another car payment now so....