The CTS-V lives at the top of Hoon Mountain. Unless you're buying directly from a bought-new nobody-else-drove-it little old lady, of course it saw action.
But it seems like the car can take it. Between the active modding community and the lack of serious mechanical grief among the stock and near-stock crowd, I don't get the impression that the car is fragile. What's most of the traffic here in General about? The brakes click, the supercharger rattles, the diff whines. The car's noisy, but not fragile. The biggest weakness worry seems to be rocking Recaros. Am I wrong?