The Z06 and new ZR1 have the best performance for the $$$. They're hard to beat. I recall the 2006 Z06 commanding a premium at dealers and private party sales when it came out, but 2 years later they're being discounted new at least in the Bay Area. The new ZR1 will also command a premium but no where near $250,000. I doubt the ad is real. I suspect it's someone trying to collect information.