As to which manufacturer is top in a given country can be influenced by various factors. For example, a local brand is usually top where it is made. German speaking countries and northern Europe favour VW, Renault is most popular in southern Europe, while Skoda and Lada are strong in eastern parts.
Below shows which make was most popular in the listed country. A number in brackets by the brand name shows how many countries it is top in. A number by a country shows its position the previous year, and no number by a nation means it was top last year also.
Dacia - Romania
Nissan - Cyprus
Seat - Spain
Volvo - Sweden
Europe is turning VW. To the degree that is happening I do not find particularly impressive. I thought Europeans had more imagination. For example, apart from its being a competent appliance, what appeal does a Passat have? I'm not knocking VW, but they aren't that good. A little more imagination may be in order; thinking outside the square.