Currently reading: European car sales drop sharply due to impact of WLTP tests

The PSA Group overhauls the VW Group as Europe's market leader, with the Vauxhall Corsa September's best-selling car

The European car market suffered the biggest monthly decline of the decade so far in September, with the impact of the new WLTP emissions testing regime contributing to a 23.4% decline in year-on-year sales.

Across Europe 1.12 million vehicles were registered last month, according to data from industry analysts JATO, a 343,000 fall from September 2017. The sharp fall had been expected due to the ongoing problems of readying cars to meet the new and tougher WLTP tests, with JATO noting that only 57% of versions previously sold currently meet the new test conditions.

New WLTP tests: what you need to know

With registrations spiking in August as manufacturers cleared stock ahead of WLTP coming into force on September 1, overall European sales are still up 2.3% year-on-year.

JATO analyst Felipe Munoz said research showed a direct link between the availability of WLTP-homologated models and registration figures. “We will continue to see registrations decline so long as a large portion of the market’s versions remain unavailable under the new test conditions,” he said.

“The big question now is how long the drop will last, which will depend on how long it takes car makers to homologate the models they want to keep on the market.”

The Volkswagen Group has particularly struggled with readying cars for WLTP, which contributed to the PSA Group – Peugeot, Citroën, DS and Vauxhall/Opel – becoming the best-selling car maker in Europe. That makes September the first month in nearly eight years that the VW Group has not topped European sales charts.

Vauxhall/Opel had a particularly strong month: while it’s September year-on-year sales were down 12%, its 80,920 registrations were enough to make it the best-selling brand in Europe, narrowly ahead of Ford (80,813). By contrast, Volkswagen’s sales fell by 53% to 74,469, with a particularly sharp decline in Germany. Audi also struggled, with its sales falling by 60%.

The Volkswagen Golf, which has been Europe’s best-selling car every month since March 2017, particularly struggled, with registrations falling by 71% to 14,968. The Vauxhall Corsa became the new market leader, with 24,752 examples of the supermini registered – a rise of 5%.

The Ford Fiesta also performed strongly, with registrations rising by 20% to 22,478, putting it second in the European sales charts.

Read more

WLTP test: warnings that CO2 increases could be higher than expected

New WLTP tests: what you need to know

VW Group hit hard by new WLTP tests

Join our WhatsApp community and be the first to read about the latest news and reviews wowing the car world. Our community is the best, easiest and most direct place to tap into the minds of Autocar, and if you join you’ll also be treated to unique WhatsApp content. You can leave at any time after joining - check our full privacy policy here.

James Attwood

James Attwood, digital editor
Title: Associate editor

James is Autocar’s associate editor, and has more than 20 years of experience of working in automotive and motorsport journalism. He has been in his current role since September 2024, and helps lead Autocar's features and new sections, while regularly interviewing some of the biggest names in the industry. Oh, and he once helped make Volkswagen currywurst. Really.

Before first joining Autocar in 2017, James spent more than a decade in motorsport journalist, working on Autosport, autosport.com, F1 Racing and Motorsport News, covering everything from club rallying to top-level international events. He also spent 18 months running Move Electric, Haymarket's e-mobility title, where he developed knowledge of the e-bike and e-scooter markets.