I don't think the Element can be beat for an automotive application (barring a full on suppression system) for many reasons.
Have been looking at this bracket along with the Element Quick Fist mount:
https://www.bkauto.com/R_2225_BMW_Fi...t_p/r-2225.htm
https://elementfire.com/collections/...avy-duty-mount
Hopefully it won't take much to marry the two together and have an effective/out of the way solution.