earlier this year.......I looked at a Lexus LX...(Toyota Land Cruiser)
Small used car lot...some tar type substance was sprayed on under carriage
Asked the owner for car fax...sure as schidt...truck came from MA & CT
Looked awful...........I ran......later bought one from AZ
Sounds like they rhino lined it or something similar. I know my dad buys only new vehicles (I'm to cheap) and has the dealer undercoat it and it doesn't look bad and seems to work.