if your trying to stay under $400, you might wanna try getting a used big name brand. check your local hobby shop to see if anyone is selling their buggy at the hobby shop.

the ones "i think" are in that price range new are gonna be the
xtm terminator
hot bodies lightning
duratrax axis

of those three buggies, id choose the xtm, but id rather have a used kyosho than an nib xtm.

you can get a nib gs storm for $450 on ebay and it comes with a very nice 3 channel fm radio.