The driving is on the right side of the road. The billboard features a "5" in a red circle, which is common in Portuguese advertising. The dry, grassy embankment and the clear blue sky suggest a Mediterranean climate. The infrastructure and lighting poles look typical of a major highway near a European city. I suspect this is in Portugal, likely near Lisbon.

I am 60% sure.

then: forward

The wide-open highway and the specific style of the overhead signage confirm I am in Portugal. The landscape is characteristic of the arid, scrubby terrain found in the outskirts of the Lisbon metropolitan area. The sun's position and the clear sky align with the typical bright, sunny weather of the region. I am confident this is a major motorway near Lisbon, likely the A5 or A1.

I am 85% sure.

then: guess