Likely, buying a CH car is a bad idea, unless the price is very cheap which is usually not the case
High prices but also relatively good supply. The number of high powered cars available is astonishing - you'll find a vast number of 458s coming on to the market now the 488 is out for example. And that is before you dig down and look at something like a 3-series BMW - where the market is awash with 335i