if you really look they are very very very different.....ground zero's are huge about 50% larger on the motor...plus the all have diff motors and suspensions your analogy can be said about a ferrari a corvette and a impala ss they all have 4 tires........
How does an IDMax look like a Brahma? Look at a RE, Blueprint and a Brahma. Now that's what I call similar, lol.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
but the shiva does look like the jl subs without any lettering. if you where to paint a jl logo on the dustcap and say a "w6" on the back of the magnet you could sell it for about 180 as a w6 and make 55 dollar profit