Sometimes I find prices like 1000 usd in green what it mean?

 Green  usually means it’s a current pre-bid price at the auction. Meaning the price the auction will start from.
 Orange  is usually a buy now price which means you can purchase that particular vehicle at that set price without going through an auction first. Read more

I am from Nigeria, how can I make any payment to you by Naira

You would have to make a bank wire transfer in USD. See details : How do I pay for the car?. Please, ask your bank companies for more information about foreign transaction conversion rate.

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