Then the antiroll bar attachment points become bellypan attachment points.
Speaking of pickup truck aerodynamics, here's an update on Canoo (linked no embedded because some here don't like the Electric Viking).
How American EV company Canoo was saved from bankruptcy just in time
It gives a rundown of the company's history, personnel and drama; but what I found interesting is that the salvation came from the Oklahoma state government and the Cherokee Nation. with deep ties to China and Germany, and facilities in California, Detroit and Texas.
It's a worthy successor to that form factor last seen in the VW Type II crew cab, plus a frunk.