Sonja buys used cars directly from private sellers across Norway. Enter your registration number and mileage to get a free, non-binding price estimate instantly, then a concrete purchase offer—often the same day. If you accept, Sonja collects the car at your address, handles re-registration and paperwork, and pays you out.
How it works
Enter your registration number and mileage. We look up your vehicle and give you a free, automatic estimate from market data — before we follow up with a concrete purchase offer.
We call you fast – often the same day – to discuss condition and details. You receive a concrete, no-obligation purchase offer.
Accept the offer and we collect the car, handle all paperwork and the resale. You get paid – done.
Why sell with Sonja?
- No warranty liability
When you sell privately, you are liable for defects for 2 years. When we buy your car, we take over all responsibility from day one.
- We come to you
No need to drive anywhere. We collect the car at your location, free of charge.
- Less stress than selling privately
Many people find private sales draining: lots of messages to answer, haggling and low dealer offers—and several rounds of strangers wanting to visit your home to view and test drive the car. With Sonja you get one clear offer and one agreed pickup when you are ready.
- Transparent pricing
Our offer is based on public vehicle data and current market prices. We explain how we arrive at the number.
- The car is yours until you decide
The car stays with you until you accept the offer. No pressure, no commitment.
How it works
How we make it possible
Private sales can fetch a slightly higher headline price—but many people find them draining: lots of messages, haggling, strangers at your home for viewings and test drives, plus paperwork and consumer liability. Sonja buys your car directly and runs collection, inspection, prep, and resale in one professional flow—that is where we scale. Our offer may sit a little below a theoretical top private price; you trade that for certainty, less work, and none of the usual hassle.
Our estimates draw on open data: vehicle details and EU-inspection (PKK) records from the Norwegian Road Administration, list prices (OFV) from the Tax Administration's car price tables, and registered fleet statistics from Statistics Norway (SSB).
Ready for a simpler car sale?Register your car in 2 minutes and let us handle everything – from offer to payout.
Questions
Frequently asked questions
Is it free?
How does Sonja make money?
Will I get the same price as a private sale?
How does the price estimate work?
What happens after I submit?
What if I disagree with the pricing?
Am I liable for defects after the sale?
Which cars do you buy?
How long does the process take?
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?
Sonja combines market data with open vehicle inspection (EU-kontroll) figures from Statens vegvesen when we value your car. Explore stats 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 we use in your price estimate. See all brands and models
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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.