FRANKFURT -- German registrations increased 25 percent last month as Volkswagen and other brands flooded the market to reduce stocks ahead of the introduction of the new WLTP testing regime on Sept. 1.
New-car sales jumped to 316,405, the KBA motor vehicle authority said on Tuesday.
Since the start of this month, automakers in EU markets have only been allowed to sell vehicles that have been certified under the Worldwide Harmonized Light Vehicle Test Procedure, or WLTP, with few exceptions.
The change to the WLTP contributed to the August growth, Reinhard Zirpel, head of the VDIK vehicle importers association, said in a statement.
Most mass-market brands benefited last month.
Renault was the biggest winner with volume up 102 percent, followed by a 93 percent jump at VW Group's Seat brand. Mitsubishi was the No. 3 gainer as registrations rose 62 percent, followed by Porsche with a 60 percent rise. Dacia finished off the top five gainers with a 53 percent leap in volume.
Sales at VW brand rose 46 percent, while sister brands Audi rose 45 percent and Skoda was up 18 percent.
Other winners included Citroen, which rose 31 percent; Hyundai, up 24 percent; and Peugeot, which increased 18 percent. Fiat's sales increased 14 percent.
Kia registrations rose 13 percent, while fellow Asian automaker Toyota also saw a 13 percent jump.
• Download PDF, above right, for German sales by brand for August.
Sales at Ford rose 7.4 percent, while Mini brand registrations rose 12 percent, ahead of BMW brand sales, which rose just 3.1 percent.
Losers last month included Nissan, whose volume dropped 24 percent, and Mercedes-Benz, which fell 11 percent. Opel registrations were down 5.2 percent.
Sales of gasoline vehicles rose 33 percent in August, giving the fuel a 62.1 percent market share. Despite the backlash against diesel, registrations of diesel cars rose 8 percent for a 32.6 percent market share.
Through August, German sales are up 6.4 percent to 2.47 million.
VW has warned that WLTP will dampen sales in September and October. The automaker rented car parks and open parking lots to store the vehicles it cannot yet deliver.
From September onward, only half of VW's 14 passenger car models are compliant with the new standard, the automaker said, drastically curtailing its offerings in September and October.
Reuters contributed to this report