Volkswagen has reported its first drop in VW brand sales in 11 years as the company continues to cope with its emissions scandal.
The VW brand sales fell 4.8% in 2015 to 5.82 million cars from 6.12 million a year earlier.
Falling demand in China and US added to the losses as orders fell in December.
VW has promised it will have a fix in the coming weeks for the millions of US cars with defeat devices that disguised emission levels in diesel cars.
Sales began declining after the emissions scandal came to light in September 2015. Deliveries fell 5.3% in October, 2.4% in November and 7.9% in December compared with those months the previous year.
Speaking on January 6, Volkswagen chief executive Herbert Diess said he was “optimistic” the company would find a solution soon.
“We will bring a package together which satisfies our customers first and foremost and then also the regulators,” he said.
Regulators appear been less confident. The Environmental Protection Agency (EPA) which uncovered the scandal, said on January 4 that VW had not yet “not produced an acceptable way forward”.
VW will meet the EPA in Washington next week to discuss its plan.
On January 4, the Department of Justice filed a lawsuit against VW for the use of the emissions devices, which involve computer software that can detect when cars are being tested.
The Connecticut Attorney General George Jepsen said on January 8 that the company was not cooperating with the investigation.
VW has been withholding corporate emails between executive related to the emissions scandal, using German law as the basis for the refusal.
“I find it frustrating that, despite public statements professing cooperation and an expressed desire to resolve the various investigations that it faces following its calculated deception, Volkswagen is, in fact, resisting cooperation by citing German law,” George Jepsen said in a statement.
In 2015, a record 17.47 million cars were sold, according to Autodata. The car data company has been keeping records since 1980.
General Motors, one of the biggest US automakers, had an 8% increase in sales.
Mercedes-Benz USA had its most successful year since entering the country, with sales rising 3.8%.