All three rotors of it's tube framed self!
Steve, go count your wheels and tires, and the "Stuff" that makes your current effort tick.
Now go replicate that for a Lexus (you're nuts) or an RX-8. Do the math.
Now, remember the rule, "buy, don't build",
Then apply the corollary, "If you must build, don't be the inventor".
I see you breaking every one of those. Do you really want to go backwards competitively, while spending double and triple what you're used to??