First video created and shared. I still have a bit of work to do (especially with where I hold models up to the camera) and memorising the notes I made.

Oxford Diecast Imperfect Collector Box
https://www.oxforddiecast.co.uk/collection...

Oxford Diecast Collector Box
https://www.oxforddiecast.co.uk/collection...

It turns out the 2 American cars were a Chevy Impala convertible and a Mercury Monarch (1949).

I also discovered that the fire engine ladder extends. It's a proper high reach one.