Comparing car quotations under unified trade terms starts with the vehicle's identity, then the promises attached to it. The concrete evidence is the seller's delivery responsibility, the freight and insurance scope, and the risk transfer point and destination port charges. First write the trade terms version and named place into the contract, then check costs, risk and obligations against them.
Incoterms 2020 contains 11 rules; a contract that only says FOB or CIF without a named place and the 2020 edition still leaves the responsibility boundaries incomplete. At the quotation stage, also see What is the difference between ex-works, FOB and CIF pricing?. Car trade term comparisons are ultimately governed by the local rules and written confirmations in force at the time of processing.