The evening before Volkswagen Group and the US Department of Justice (DOJ) are supposed to submit a settlement to San Francisco District Judge Charles Breyer, Bloomberg’s sources have leaked new details about that supposed settlement.

Last week, VW Group was rumored to offer a settlement of $10.2 billion, with $1,000- $7,000 per car affected by the diesel emissions scandal that’s rocked the company since September. Today, Bloomberg is reporting that that number has gone up to a total of about $15 billion, with affected diesel owners potentially getting up to $10,000 in compensation.

Bloomberg’s sources specify that VW Group will set aside $10.03 billion to pay back the owners of nearly 500,000 Volkswagen and Audi 2.0 L diesel engine vehicles in the United States. “Those figures could rise if VW misses certain deadlines,” the news outlet writes.

The German automaker will also reportedly pay $2.7 billion in fines to the Environmental Protection Agency (EPA) and the California Air Resources Board (CARB), and set aside $2 billion to invest in developing cleaner emissions technology. In addition, VW Group may set aside up to $400 million to settle with the various states that have sued over the illegal software found on the diesel cars which made them run cleaner in a laboratory, but emitted many times the legal limit of nitrogen oxide (NO x ) when on the road.

The settlement still needs to be approved by Judge Breyer to take effect. If it does, it would set a record in terms of the cost to an automaker for flouting environmental standards. Still, VW Group faces many more lawsuits, not the least of which involves the DOJ, the EPA, and CARB in a continued dispute over VW Group’s 3.0 L diesel engines, which also include Porsche models as well as Audi and Volkswagen cars. The Federal Trade Commission has also sued Volkswagen for falsely marketing “clean diesel” vehicles.

In order to get the payout from VW Group, diesel car owners will have to give their cars back or agree to have them fixed. The EPA and VW Group have not yet come to an agreement on how exactly VW Group will fix the cars, but any fix will likely leave the cars with worse performance and fuel economy, according to the New York Times, which has confirmed Bloomberg’s report. According to Bloomberg, VW Group has until the end of 2018 to come up with a fix, during which time Volkswagen and Audi vehicles can continue driving on US roads, polluting as they had been before.