While the ZR1 is terrific performance wise, you have to consider that the C6 weighs around 3100-3200 pounds. That's very light. And even strapping myself into a Z06 like I've done in the past is quite the rush. You can get a stock Z06 sideways from a 70 mph roll on the highway if you're not careful. I personally wouldn't buy a ZR1 for the price premium over the Z06. But that's just me. Not to mention, used Z06's are a bargain for the performance. Finding a really nice low mileage '06, '07, or '08 is easy to do in the 40's.