Get the right price
Check out a used car price guide like Glass's to find out how much your car is worth. When looking at a valuation make sure you factor in features that affect the price, such as condition, mileage, special features. Also keep in mind whether you are looking for a valuation for a private sale or a trade in/part exchange.
Prepare your car
A good looking car and well organised portfolio will help you achieve a better price. As a minimum, thoroughly clean your car inside and out and make sure your MOT is up to date. If your car doesn't have an MOT it will put perspective buyers off as they will assume it needs serious repairs. Prepare a portfolio for the vehicle with registration log, service book, MOT certificate, vehicle hand book etc. If you want to get the best price possible, think about changing your tyres so that they are all matching and have any minor repair works carried out. A professional valet is also a good idea if your car is particularly dirty.