When straightforward design veers sharply off track and spins out of control due to the temptation to add increasing numbers of non-essential features, the basic direction and even function of the design can suffer. This is the basis of futilitarian design.
The Jeep is a small, tough, agile and cheap light scouting vehicle. Its replacement, the HMMWV, is large, expensive and easy to high-center. This is a prime example of a futilitarian vehicle.