I am flying through a tunnel with distinct, smooth, light-colored walls and overhead lighting. The vehicles are driving on the right side of the road. The tunnel architecture and the style of the lighting are very modern and clean, characteristic of high-quality infrastructure often found in Northern Europe or Scandinavia. The appearance of the car and the tunnel environment suggests a well-maintained urban motorway. I suspect this is in Norway, likely near Oslo.

I am 40% sure.

then: forward

The tunnel walls are very smooth and bright, which is typical of modern tunnels in Northern Europe. The driving is on the right, and the road markings are white and clear. There is a green sign visible in the distance, which is a common color for directional signage in Norway. The overall lighting and infrastructure design strongly point toward a major Norwegian city's tunnel network, likely Oslo. I am now 70% sure.

then: guess