How does CarGuru know if a car has frame damage?
I found a 2004 Land Cruiser on CarGurus and the dealer's website had a Carfax report showing no frame damage.
When I filtered my CarGurus search to omit cars with frame damage, the Land Cruiser was omitted from the search results.
This may help answer your question. https://cargurus.uservoice.com/knowledgebase