A 1930s Austin Showroom - the full picture.

[Bob Culver]

The factors which make for a collectable or hobby car may have had little appeal to the new buyer (ie quirckiness). And it is difficult for buyers to assess new models. Reputation seems to have been a major factor. Ford had to live down the Model T. In the 50s when the Seven was still our family car, my grandmother was dismissive of her neighbour who ran a mere Ford, albeit a Mainline station wagon! The 1935 model compared very poorly with the Morris 8, better in nearly every measure except perhaps external dimensions

A tyre commonly used on Sevens was 3.50/4.00. As these were clearly 4.00 the designation always intrigued. But I think the car in the showroom is so fitted.
3.50 top and 400 bottom.