Major red flags fall into two buckets: paperwork/identity red flags and condition/test-drive red flags. Paperwork red flags include inconsistencies between the car and the OR/CR details (plate/VIN or chassis/engine numbers not matching), or signs that documents may not be reliable, local scam-avoidance guidance explicitly tells buyers to match identifiers carefully.

For condition red flags, local buying guides recommend a physical inspection and test drive (ideally with a trusted mechanic), paying attention to issues like fluid leaks, unusual behavior during shifting/acceleration/braking, and anything that suggests hidden repairs or poor maintenance.