I had to make NO modifications to my FS to fit the Robotronic LiPos in, nothing at all (ok, 4 off the taller batt posts not 2 of each as per kit but that is it!!!!).
The new body isn't as nice as the current FS body in my opinion but style is a matter of personal taste so no biggy. To get everything under my FS shell I just didn't cut the base to thecut lines, rather left it full height and I've plenty of clearance and the car only looks slightly fuller figured than a car with a body to stock cut lines (and a little podgy matches it's owner
)
I along with a lot of people who where at Petit spoke at length with Shin about the revisions to the cars and to be honest they aren't changing much this year.
The best thing coming is a very trick new slipper assembly .... now that will set the car apart from anything else out there in terms of drive-line tunability and could make the difference to many people between a car that performs superbly and something too awesome for words .... now that is an upgrade kit to look out for (Shin suggested that he hoped it would be around by the end of March / early April in Japan which means the rest of the world would get it a few weeks later for logistical reasons ... but no promises on that date)