The weird thing to me is Cadillac racing and their V series. I understand the halo effect, I guess, but someone buying an Escalade probably doesn't pay much attention to that odd looking sedan that costs over $100 K. The Caddy spent a fair bit of money on a DOHC engine and then barely used the engine, which was called Blackwing, but they use the name for the CT5-V Blackwing which has ... a Chevy engine.
GM can be a bit odd.
The number of Corvette models is, to me, "interesting"? They have the monsters at the top end, well over 1,000 hp. Then the Z06 with a "Ferrari" style engine, then the Grand Sport and GS X, and the base models. I gather they are profitable. I doubt Caddy makes much money if any on the Blackwings.