it comes with a rolling chassis... and I'm pretty sure it coems with tires also.
in other words you'll need
Engine
Manifold
Exhaust pipe (don't forget to geta coupler also)
Electronics (2ch radio, 2 servos, a reciever battery pack, 8 AA batteries for your transmitter)
a starting system (if your engine has a pull start dont worry about this)
Glow ignitor
Fuel and a fuel bottle
and I'm pretty sure thats it
I've heard that the parts ARE hard to come by thats why i went with the rc10gt instead of the mst-1 another good choice is the team losi xxx-nt.