My GP when I was a kid had what I am sure was a DB4, it had David Brown Aston Martin badged on the rear and it was glorious; as a lad from North Yorkshire I felt privileged to see it and it sounded astonishing.
Skipped over the DB6 . (Longer wheelbase, 2+2; Kamm tail. better aero than DB5. Front half Identical to DB5 ) Paul McCartney had a DB6 and wrote Hey Jude while driving his.
Not much pre-war history here. Aston Hill Climb is not at Aston Clinton, but near Wendover Woods. No mention of the company's 1930s success at Le Mans.