ok these may have come up before but they seem pretty clean.
you can buy the whole car for $75 from rc mart but im only interested in the chassis because the elecs are only a little better then xmods.
the chassis alone is $22 which is a bargin i think, comes with 2 ball diffs, motor, aluminium dog bones, a micro servo front case designed for this, you take the front case off say a hs-55 and replace with this one, oh and plenty of room for optional elecs by the look of things.
my only conserns with this are the body posts for this scale car which is 1/24 btw but can be removed. the second is the motor, it has a single shaft through the motor with a pinion on either end for AWD so unless you can find any motors like this id say if you upgrade the motor you will go RWD.
im going to get one of these for my super bee project.
comes with everything you see basicly.
LINK!