Yes, I think we're seeing a fall in demand for big V8s, and it's not just the cost of fuel that is suppressing demand. And of course a significant supply of CX cars too. The quandary is do you market the car elsewhere and drop the price, or do you grit your teeth and hang on hoping that the right buyer will turn up?
TBH asking new Plus Four money for a 7 year old car does seems a bit optimistic. I certainly know where my money would be going if I were in the market.