The best replacement for vin number is chassis number.

The best alternatives to vin number are rated as following:
★★★★★  chassis number
★★★★★  serial number
★★★  engine number
★★  title number

Your alternative for vin number is not listed? Suggest!
Speaking about vin number, one probably shouldn't forget about license plate.

Other search terms related to vin number and their ratings are:
★★★★★ license plate
★★★ owner
★★ plate number
★★ tag number
★ license plate number
You have in mind a companion for vin number and it is not yet here? Propose!



Google Trends

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vin number
chassis number
serial number