Renault, Fiat and PSA/Peugeot-Citroen had big declines in European sales last month as consumers balked at making large purchases after the region's economy shrunk.
New-car registrations last month fell 7 percent to 1 million in the EU and EFTA countries, marking the fourth-consecutive monthly decline, industry association ACEA said on Thursday.
Renault Group sales declined 25 percent to 82,724 units with the core Renault brand falling 29 percent while sales at the low-cost Dacia unit were down 7 percent.
Fiat Group sales fell 16 percent to 69,479. The core Fiat brand saw sales decline 18 percent while Lancia/Chrysler sales increased by 8 percent and Jeep sales were up 58 percent.
General Motors saw its European sales decline by 14 percent to 73,376 with Opel sales down 21 percent and Chevrolet sales rising 27 percent. Ford sales declined 4 percent to 80,212.
VW, Daimler sales grow
Volkswagen Group sales grew 2 percent to 240,736, led by 7 percent growth at Audi and a 11 percent rise at Skoda.
Premium automaker BMW suffered a 5 percent volume drop while rival Daimler saw sales rise 5 percent.
Hyundai and Kia continued their sales expansion in Europe with rises of 17 percent and 31 percent respectively, while Toyota Group sales including Lexus fell 8 percent.