It's certainly a mystery.
The car clearly has the grille from a Morris Oxford MO, with a Morris badge above it. The nearest equivalent Wolseley was the 4/50, which had similar, but not identical, bodywork (the sculpting of the front doors is different). However, it had the traditional Wolseley radiator with the equally traditional illuminated badge set in it. Examples of both standard saloons attached, Morris above, Wolseley below.