Let's say someone has a travel blog. They travel by motorhome, bus, whatever and their visual content is all shot from inside looking out a window. Do you think that might get the blog more viewers?
If the content creator can reveal the beauty of places, it should be fine. Even leaving the viewers an impactful perspective will be enough. I don't think the destinations in travel blogs have to be expensive getaways for the blog to succeed.
I think this would be a neat idea. A lot of my experiences of travel as a kid was looking out the window while my parents drove, so it would feel nostalgic for me.
It'll even be exciting if you have your vehicle. The blog will still be successful regardless if you use public transportation. Because aside from giving a local perspective, one will be able to show the smallest of details about the place.