Weight matters - 69 Camaro Beck Racing Engines - 496 BB Chevy Street Engine

I'm looking for some audio suggestions. My daily driver has a single 12" sub and I'm happy with it. Thing is, it weighs a zillion pounds. I'd like one in my Camaro, but would want a much lighter solution. Any ideas? Do bass shakers still exist?

Have you considered IB ? I think Aura still sells the bass shakers but they do not wholly take the place of a true sub