Enzo is faster than the CGT for sure (if you raced em over and over). CGT is probably the most vicious sounding factory car ever, but it's a handful. Everyone I know who has driven it says the clutch is a major bitch, to the point it makes experienced drivers look foolish. I also have a friend who ditched his because it was completely unreliable within 10k miles.
Great fuckin deal though, considering you can get brand new ones that were never bought wildly under MSRP.