Ill have to give another vote the Evo 8 or 9.
Best bang for the buck.
-MSR
I don't know, I think the V8 Miata is a great value for a part-time track car that you can daily drive. It's basically a modern-day Shelby Cobra with the handling dynamics of the Miata. All for about $10,000 and it will eat Evo 8's and 9's for lunch on the track. If you put another $10,000 into the engine (Ford 347 crate engine) and suspension, you will have an Enzo-killing supercar.
Of course, even after driving my dad's car and wrapping my face around the headrest a la Jeremy Clarkson, I still prefer my NSX.