(With apologies to those who already know all this stuff)

That lady visitor said it all:

“I get it now!"

“It’s not just about engines, is it?”

“Actually, it’s all about excellent design.”

…and “London & Derby”, “L&D” ?

The places where the cars were made provide us with some descriptive names:

Pre WWII:

MANCHESTER 1904 to 1908 Early Ghosts

DERBY 1908-1939

“Derby Phantoms” v. Post-WWII PIVs, PVs & PVIs & “Goodwood Phantoms”

“Derby Bentleys” v. “W.O.Bentleys” & Post WWII Bentleys