More kudos for GMBuyPower. I found the perfect Av that way - checking dealer inventory at close in dealers and working out until I found what I wanted. I did end up driving 150 miles, but got the perfect Av with less than 5 miles on it, got a pretty good price, got the 0% financing, an unexpected $500 bonus, a realistic trade on an old clunker, and my best car buying experience yet!
I'm now trying to do the same thing on a 'Vette - but the 50th AE cars are somewhat scarce - we'll see how that turns out!