i have sold loads of cars on carzone. im not a dealer but i buy and sell cars fairly frequently if the price is right. carzone is great if you are selling at a realistic price. for instance, if i am looking for a ford mondeo, when i click on the model the cheapest price comes up first so there is no point in looking at the overpriced ones on the next page. it amazes me that people expect to sell their cars privately for the same price that dealers would sell for. i would say that 80% of cars advertised on carzone are overpriced, and their price calculator for your car is based on the average of x amount of overpriced cars on the website so this will be way off the mark. i find local papers also get a very good responce as some people prefer to buy a local car for peace of mind
drop your price and advertise again