Ebay is probably the best place for cosmetic stuff on your car, everything can be bought from wheels to sideskirts, to those hideous plastic cigarette lighter things Alternatively, do you have a scrapyard local? this is the best place to find spare parts on the cheap, alloy wheels are pretty cheap, and cosmetic stuff like vanity mirrors, door cards, buttons, switches etc can be cheaply found For oily parts, like engine spares, suspention arms or stuff like that, then talk to your local garage, i can never trust important parts that have come form a scrap yard.