This list includes automotive marketplaces and classified companies. Horizontals with an automotive component are not included. Rankings are based on total monthly visits in July 2021, sourced from SimilarWeb, with international domains aggregated to create a traffic total for each specific brand. For example, monthly visits to all CarGurus–branded sites globally have been combined into one total.

Note: Monthly visits to China-based sites may be inaccurate, due to the country’s firewalls, and are likely to be higher than stated by SimilarWeb.

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