It sure doesn't look like her. Because it isn't.
I suppose that might explain it.
Like I said, I can recognize cars easier than faces. And I spose I'm not smart enough to know when to give up.
Let's try a Canadian-born woman racer (I know you said she wasn't a racer, but....), Kay Petre (Kathleen Coad Defries) who was associated with several cars, Wolseley Hornet, 2-litre Bugatti, a Riley and an Austin 7. But I spose the most significant car would be the ex-John Cobb 1924 Delage 10.5 litre V12 that she drove at Brooklands, averaging almost 135 mph in a "duel" with Gwenda Stewart. Kay lost the contest when Gwenda ran almost 136 in a Derby-Miller special.
This photo shows a woman who looks a lot more like the original (at least to someone with my limited facial recognition ability):