Then the vega kit shoved up, and I am back from a short trip to France.
After assembling some of the parts (I still have the B4.1 diff on its way somewhere..) I had to test the cougar body, or in fact I have bought both a cougar and a phat body for the vega, so I tested the undertray, and this seems to be working pretty well. Here are a couple of crappy cell phone shots:
As can be seen, the cougar shell is a bit wider, but I am still optimstic. I might just paint the vega shell just in case, but I hope I dont have to use it