> By that logic you'd buy a vehicle with no trunk, since you're hauling around that "big empty space." Or a vehicle with only a single seat for when you have none or fewer than capacity passengers.
It's a compromise for all vehicles obviously. Ideally you'd want one that didn't have those empty seats - but that's not practical. If you want to minimize weight/drag/cost/fuel consumption while at the same time hauling x cubic feet and 5 people, then that is an optimization problem. I don't know what the optimal solution is, but I doubt it looks anything like the traditional pickup (A cybertruck possibly comes closer). The optimization problem becomes differeent if you add more constraints, for example ability to tow X thousand pounds.
> an outdoor trunk space from an indoor one, and claiming one is wasteful without actual justification. If anything an outdoor trunk has less vehicle side panels, glass, mechanics, and weight therefore less drag:
Drag is a shape coefficient, not a weight coefficient. Most modern cars, even SUV's, have drag coefficients in the low .30's. Most pickup trucks don't come close, even in marketing values (One of the lowest claimed values is the Ram 1500 with .36, and the Cybertruck will be lower). An F-150 is north of .50 in testing [1]
It's a compromise for all vehicles obviously. Ideally you'd want one that didn't have those empty seats - but that's not practical. If you want to minimize weight/drag/cost/fuel consumption while at the same time hauling x cubic feet and 5 people, then that is an optimization problem. I don't know what the optimal solution is, but I doubt it looks anything like the traditional pickup (A cybertruck possibly comes closer). The optimization problem becomes differeent if you add more constraints, for example ability to tow X thousand pounds.
> an outdoor trunk space from an indoor one, and claiming one is wasteful without actual justification. If anything an outdoor trunk has less vehicle side panels, glass, mechanics, and weight therefore less drag:
Drag is a shape coefficient, not a weight coefficient. Most modern cars, even SUV's, have drag coefficients in the low .30's. Most pickup trucks don't come close, even in marketing values (One of the lowest claimed values is the Ram 1500 with .36, and the Cybertruck will be lower). An F-150 is north of .50 in testing [1]
[1] https://thenextweb.com/plugged/2019/12/02/heres-how-the-cybe...