ive gone off narrow
especialy on 2wd's
having the weight hanging off the centre line ie X6 / cr2 helps the car iron out bumps in the corner increasing traction and ease of driving fast effortlessly
if that makes sensei could put it better but am in a rush:thumbsup:

the short version, skinny cars aren't as stable and planted

Are you familiar with the turbo-glide transmission? It's a vintage mod for RC10's, Losi RX2 (I think) and ultima.
Their design is making we want to do a 4wd version; with 2 vertical sideplates serving as chassis moterplate and front and rear gearhousing too; rather than the traditional separate cases and sandwhich constructions.

Hello mr Ed
I did that method of construction many years ago
And made a 4wd that was 7.5cm thin chassis wise way before the Durango prototypes
It was carbon side plates forming transmissionsides and the chassis supports
It had a centred servo at the front with cells in the middle and centred motor.
It ran xxx4 diffs and belt with a home made clutch and layshaft.
Basically it ran a xxx4 transmission upside down so it ran over the electrics!
It went well lol it was an early proto and did a good job of trailing that layout.

Mr ed
It's an easy method of construction that works well I say go for it mr:thumbsup:

You don't happen to have some pics of that build?
I have a couple more ideas to put in the same build... but am a bit scared to start it: because of the large parts 1 mistake could mean a lot of waisted material and mistakes are easy to make without CNC cutting and drilling :(