Process
How it works
Three short steps. Dealers bid. You choose whether to sell.
Look up the car
Enter plate and mileage. We fetch the rest automatically.
Photos and info
Upload photos and a little information. The car is then ready to be listed. Nothing more is required from you — we take it from there.
Dealers bid
If the steps are completed today, the auction can start and end tomorrow. You choose whether to accept the highest bid.
If you say yes, we handle payout, ownership transfer and collection. You skip the paperwork.
Why Sonja?
- The car stays with you
No viewing. Photos and condition are enough.
- Completely free
No fees. No commitment. You choose whether to sell.
- Sell as soon as tomorrow
Finish photos and answers today, and the auction can start and end tomorrow. Then you have the highest bid ready.
- You see what dealers will pay
Several bid. You choose whether to sell after the highest bid.
- Payout and transfer of ownership
If you say yes, we handle the money and the transfer.
How it works
Why is it safe?
You pay nothing, and you only sell if you want to. Dealers bid on your photos and answers — not on a car you have handed over. If you say yes, we handle payout and transfer of ownership.

Start with plate and mileageLet dealers compete for your car.
With Sonja, professional dealers bid on your car in a time-limited auction. You look the car up and prepare it at home with photos and a few answers. Completely free and no obligation. Finish those two steps today, and the auction can start and end tomorrow. Then you have the highest bid ready, and can in theory sell the car tomorrow. You choose whether to sell. If you say yes, we handle payout and transfer of ownership.
Questions
Frequently asked questions
Is it free?
Do I have to drop the car off somewhere?
How long does the process take?
What if I disagree with the highest bid?
What happens after I submit?
How is the price set?
Will I get the same price as selling privately?
Does the car need a NAF test?
Which cars can I list?
Do I have warranty liability after the sale?
Am I committed to selling when I register my car?
I already have a Finn.no listing — do I need to upload photos again?
Find your car
How much value has your car lost?
Search a brand and model to see value loss from list price, how it performs in EU inspections, and market prices — in seconds.
Facts and advice
What affects your car's price?
Dealers bid from photos, condition and open data. Explore EU inspections and list prices by brand and model, or read articles on selling, value and paperwork.
See official list prices and illustrative value by variant, compare EU inspection performance, and explore market data — the same inputs dealers look at when they bid. See all brands and models
Popular car brands
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Popular municipalities
Tools for selling your car
See all tools →Unsure about depreciation, or whether selling privately pays off? Our calculators give you answers in under a minute — free and non-binding.
