I drove two X cars or I renamed them MS2X for the Nat's this past march. One in 19t and in Mod. Weylin had the other but suffered an electrical poke in the eye. I only made 3 of them because of the complexity. What was interesting, was watching everyone's reaction to the carpet and Jack. I had a real good heads up and knew what to expect while 90% of the others were trying to figure out what tires were going to work for 8 minutes. The low t-bar made more grip then a conventional elevated t-bar which improved my grip over all in the low traction conditions. As grip came slowly in, more tire options became available to everyone. My car became even more planted in the rear, causing some understeer. I made a front track width change and I was back in the game. In 19T, I felt like I could have filled the last spot on the podium at the end of A2.... but it didn't happen due to a pair of chunked rears in A3. That's racing. Mod, didn't make the A. Had a mediocre run in the B.
Moral to the story: low t-bar = more grip over all on low traction, standard t-bar = better balance on med-high grip.
There are no production plans for the MS2X. Tooooooo much $$$$$