empeg team tried working on a more complete solution

At the time, the software available just wasn't up to the job -- it couldn't cope adequately with the noise levels in a car, and it required too much CPU to do the job.

The situation was improving (and is probably up to the job now), but car player development got canned, so we had to stop work on the VR.

One problem that you'll likely face is that open-source (or free) VR packages just aren't up to the standard of the commercial stuff, and the commercial stuff is expensive to license.