if you can find a dealer that offers "sale or return" arrangement, thats what I did last time - much better price than trade, but without the hassle of private sale
Many "Prestige" dealers offer it, im not sure if its in the interests of the big mainstream ones, but small specialists will do im sure
The dealer sells the car on your behalf for a commission - we paid £1K on a £30K car to be sold (so we got £29K for it effectively - maybe we could have got £32K if we held out 6 months, £25K trade in for a quick sale elsewhere), after getting fed up with time wasters, scam merchants etc and a months ad on the autotrader
Dealer benefits: dosent have money tied up in stock
Seller benefits: zero hassle - give to dealer, forget about it until the cheque arrives
Buyer benefits: buy from dealer in their locations, access to finance, 3 month min warranty included, p/x facilities, prepared car, buy at slightly less than full main dealer price
..everyones a winner