The quote was in euros, but the actual charge was in local currency (dinars), making a profit on the exchange rate. While the airport exchange rate was 1:115 (euro to dinar), the car rental company charged 1:121, costing me an extra 30 euros, which is about 200 RMB. Additionally, the 35 euro border crossing fee and 5 euro per day per additional driver fee were quoted without tax, so an extra 20% tax was added. Ultimately, I paid 1000 RMB more than the quote.