Alright, let's try to clear this up. The kit that I just received this week is labeled " INT'L LTD. EDITION TOURING CAR KIT" and included the extra suspension pieces AND the extra chassis. It included the 2.25 lipo specific chassis AND the 3mm 6-cell chassis. I don't know who packaged what, and I don't care when whatever is supposed to be released in Hong Kong.
If you order one of the recent arrivals from a Hobby shop in the USA, it will include extra suspension parts and two chassis's. I hope that clears it up.
The aluminum battery brace is NOT included in the kit and requires two packs to be purchased. You need one for the front and one for the rear.
I built mine with the belts flipped and it balanced perfectly at 1341 grams.
Set it up with E.Js SA setup and the car was amazing on the first run. Hope to see how it works on the clock tomorrow.