SAVA?
YES!!! That's one point to you.
This photo was from a magazine which covered the life of W B Scott who was a well-known entrant at Brooklands in the 20s and 30s. He was using the SAVA as a road car, and had purchased it from another great British enthusiast Phil Padden. The car was described as a 1911/12 Grand Prix SAVA but I can find no mention of such a car in the records, although I do not possess the "Black Book" for that era. However there was a SAVA which raced in the 1914 Isle of Man Tourist Trophy (without success) and I wonder if this is that car - it was not unknown for overseas cars to be left behind and sold to a UK racer rather than transport them home.
To add to the mystery I attach a photo taken from another website which shows a SAVA abandoned on the road during WW1 and I think this could be the same car. Possibly a British Army officer was using it as his personal transport behind the front lines. Any solid identification would be apprteciated.