Idk about you, but this doesn’t scream heavy to me.
EDIT: Hahah Jared, I'm sure you can see my face. Below is an example of a double wishbone on the MCA hammerhead. I'm not knocking the people that built the green car, just remarking on the fact that they went double wishbone in the rear when it seems like the rear of an s-chassis is pretty solid in most cases, and there are off the shelf options that correct a lot of the kinematic deficiencies. McPherson, on the other hand, seems to be a pretty aggressive compromise, mostly with static camber, that a double-wishbone effectively addresses.