Deployable rear step with in-built diffuser may improve efficiency for electric trucks

Ram 1500 Revolution BEV conceptStellantis patented a deployable diffuser that doubles as a bed step The diffuser would aid efficiency while also enable easier bed access Active aero and bed steps aren't new, but combining the two would be a first Ram may be looking to turn the humble bed step into an active aerodynamic feature that could help boost range of its future electric...