I said I would make a post when I heard more information. Here it is:

Hello Aaron,

I've got "car" versions on order as we speak, with quantity expected towards the
end of January. 4 ohm, no bucking magnet, parameters optimized for slightly
smaller enclosures than the standard RS 8". Should indeed work quite well in
that Mustang enclosure.

If you want to know anything else, just let me know!

Have a great Thanksgiving,

Darren Kuzma
Product Manager-- Speakers