Take a look at BuyYourCar.co.uk and try one of the searches. It is easy to find the new or used car you are looking for, featuring cars from both private sellers and dealerships. In my case I would be trawling the used car section. Preferably for a large car with lots of storage space. Ah, the freedom to be able to pull out on to the open road and just drive wherever you want... But I digress.
Whether you are looking for a used toyota or a big Chevy station wagon (*sigh*), you can search by preferred make and model and find matching results on the quest for your next set of wheels.
If you are new to buying a car (I bought my first car at night!! True story), you need to get all the advice that is humanly possible so you can avoid making that one regrettable purchase. In this case, check out the Buying Advice section. It contains advice on the best questions you should ask a seller, inspecting the vehicle and a used car buyer's checklist. Most valuable is the section on car buying scams. This advice is worth considering - I have seen many a poor soul on "A Current Affair" bemoaning their gullibility at buying a car online, usually employing Western Union money transfers as their preferred payment method! Had they taken advice on car buying scams perhaps they would be both wealthier and wiser today.
Buyer Beware! Car Purchasing Advice