They're really good and capable cars. I've been playing with the idea for a while myself. If it was me, I'd get the cheapest 6.4/8speed auto car you can afford (used preferably) strip about 1000lbs out of it, 18x10 wheels on all four corners with good 200tw 295-305width tires on all for corners. Pair that up with Hotchkis suspension and some good pads and you'd have a hell of a car.
Kevin is doing a really wicked job with the Redeye Challenger this year and showing how well our cars can do in a factory(ish) trim with very conservative modifications. My scatpack Charger has never failed to impress folks at the track and I'm usually about 1.5-3 seconds a lap faster than spec miatas or spec e30's
