Robbie, SNG Barratt do a 15 x 6, also Image wheels plus a few others.

I am more in favour of the standard Multi-spoke wheels fitted to the Plus Six but in 15 in diameter so they would fit the Plus Four!!

To keep this decision thread going as I'm doing something similar with my wire wheels: Stainless or black in my case.
I also wish I could have had this option on my prev model Roadster as a very cool looking alloy.

I'd say the dark gunmetal look best for this black combo,
the silver look too slab sided and jump out

... and anyone know of a set of
16" Wire Wheels for Roadster for sale please?

Ideally Black! As my Morgan is black and the black-black look is something I'f like to repeat in the same scheme as this car

Definitely the Gun metal wheels - much better blend with the Mogan- No bling and far more servicable.