Hey Guest!
he grill shell emblem doesn't look right
Well, the port holes suggest Buick...The closest I can come based on the badge is Singer, but It's not a perfect match. Is it possible it's not British ?

Could it be a JAP?
I’ve been searching but so far nothing resembling that. Do you have a higher resolution picture?Interesting that the radiator emblem is difficult to find on the 'net,
That’s what I was asking in post #7. It might not be British. Can I ask where the picture originated?Might not be a British car ...