The auto parts market on eBay should be more mature, because eBay has been promoting auto parts category for 2 years, and there should be more traffic for auto parts, which is also the main sales category on eBay; but on Amazon, there is also an auto parts category, but in terms of sales volume, it is definitely not as good as clothing, 3C and the like. In terms of platform traffic, Amazon should still be higher. To do auto parts category on Amazon, classification review is required