I generally get good results if I search for something specific (i.e. Dodge Challenger Clutch Pedal) instead of just looking for any parts that fit a specific car.
eBay sent me a survey a few months ago which included questions about ebay motors/searching. I rated the vehicle based searches very low and that brought up more questions as to why among those I indicated that too many results, incorrect results, items that did not actually fit/apply were my top reasons.