European new-car sales rose 5.5 percent in August, accelerating from an increase of 2.6 percent in July, according to industry data.
Volkswagen Group saw August deliveries rise 2.8 percent, helped by gains at its Skoda, Seat and Audi brands. Skoda sales grew by 15 percent, Seat was up 12 percent and Audi up 5 percent.
This offset a 4.4 percent fall at VW brand and 10 percent decline at Porsche.
Nissan, Renault and Toyota saw big monthly increases. Nissan's sales increased 17 percent, Renault Group was up 13 percent and Toyota Group 13 percent.
Renault, buoyed by its upgraded Megane hatchback and Koleos SUV, sold 13 percent more vehicles.
Peugeot - driven by demand for its 3008 and 5008 SUVs - reported an 11 percent gain and Citroen posted a 5.8 percent increase.
Fiat Chrysler's sales jumped 9.8 percent as demand surged 41 percent at Alfa Romeo, helped by its new Stelvio SUV.