This normal on new Aston vantage ? Expanding foam underneath

[Miracle]

[yellow_tang]

It is used to fill in the end of some of the aluminium extrusions to help prevent water ingress. So yes it is normal, but not sure of where you have taken the picture?

[Strudul]

Yep, all of em have it. The big chunks usually get pulled off to make it look a lil neater though.