The reversible rear cabin bulkhead on the eco/simple-truck is an eye opener.
Big bed when it's needed, or large interior volume with 4/5 seating positions
when needed...
Slick, but no inherent fuel savings there.
Taking the reversal idea a little farther, into the realm of aerodynamics and
fuel efficiency, what about a reversible, truly aerodynamic bed cap that
reversed into, or more likely clam-shelled around, the load bearing bed deck
and into the bed side walls.
High FE when the the truck is empty or has a small load, unrestricted height
when that is needed.
The folding/reversing mechanism to do something like this would be complex, but the multi-part removable hard tops that are on the market show that it could be done... or are those only on European cars?
