I'm not really a fan of the modern supercar replica (Lambo/Ferrari) as they usually don't have the go to match the show, and I figure "what are you going to do in your dressed up MR2, when a genuine supercar pulls up at the lights next to you?"
But.....I saw a Diablo replica at a kit car show that looked incredibly well made, and was pushing serious horsepower.
That would be something worth considering, and I certainly don't hold the older replicas (Cobra/D-Type/Sevens) in such low esteem.