FRANKFURT (Reuters) - Volkswagen
Registrations fell to 1.16 million cars in European Union and European Free Trade Association (EFTA) countries last month from 1.26 million in the year-earlier month, Brussels-based ACEA said.
Volkswagen Group sales fell by 10.9 percent, Renault's by 16.0 percent and the FCA Group's by 8.1 percent, according to the data. Renault's alliance partner Nissan <7201.T> also recorded a 30.8 percent decline.
The new Worldwide Harmonised Light Vehicle Test (WLTP) became mandatory on Sept. 1, forcing some carmakers to halt deliveries of some models that had yet to be re-certified.
Car sales had surged in the month before the new standard became effective and have declined every month since.
(Reporting by Maria Sheahan; editing by Thomas Seythal)