Foggy out the back window.

 

I was walking along the riverside from Green Park today when a very smoky BMW passed.
As it was the worst I’ve seen for years I snapped it thinking, it’s on its way to the BMW dealers.
I walked over the Churchill Bridge on the way to my own car when it passed again heading in the other direction.
In these days of cars having to pass strict pollution laws, how does someone drive when it’s always foggy out of the back window!