A Valiant Brougham? Like jumbo shrimp and military intelligence, it may seem like something of a contradiction in terms. The Valiant, a standalone marque in its first year of existence, a Plymouth ever after, always stood for simple operation, low cost and staid reliability. And Brougham has always stood for, well, Brougham. Excess. Plush, over…

Valiant. Speak the name to anyone who grew up in the Sixties and it will almost certainly prompt a ton of memories, both good and bad: “Oh, my Aunt Becky and Uncle Sid had one, it was the toughest car they ever had!” Or, “I drove one in high school, got it for $100 off a shady…