In the BMW augmented reality $($AR$)$ case study, BMW reported that using AR improved their vehicle concept and prototype engineering processes in all of the following ways EXCEPT:

Allowed existing owners of BMW automobiles to make recommendations on prototype designs and features

Allowed the real$-$world, physical vehicle body to be overlaid with true$-$to$-$scale holographic $3$D models

Allowed people at different locations around the world to use multi$-$user mod to review designs and concepts together

Allowed different concept variations and assembly procedures for future vehicles to be assessed without the need for many test models