Hmm, I'm not entirely sure what to do about this now.

Nicanary got in first with Bond, which is correct, but an incomplete answer, and I might well have given a lock to fill in the gaps, had I been given a chance to reply before the next answer came in, also with Bond, but with complete information.
So the puzzle is effectively solved, but sorry guys, on reflection I am not going to award any points for it.
To recap, it is a 1927 1.5-litre Super Sports by F.W. Bond Ltd of Brighouse, Yorkshire, with body by Jarvis & Sons of Wimbledon.