The road markings and the general landscape suggest a Northern or Eastern European setting. The driving is on the right side of the road. The vegetation looks like typical temperate deciduous forest in late spring. The road infrastructure and the billboard style feel consistent with the Baltic states. I suspect this is Lithuania, possibly near Vilnius.

I am moderately sure.

then: forward

The billboard clearly says "Helsingissä," which is Finnish for "in Helsinki." The road markings and the light poles are very characteristic of the Finnish road network. The landscape and the overall atmosphere confirm this is likely the outskirts of Helsinki, Finland. I am very confident in this location.

then: guess