The only parts that my DB01 lacks in making it an 'R' Version are as follows: Reinforced drive belts, Motor heat sink, and i guess the newer chassis as well, but other than that, I could soon start calling mine the 'R' version of the almighty Durga. As far as the new belts go, i'm not sure why Tamiya felt the need to reinforce them, as mine have never had problems for the 2 years or so of using it with low turn brushless motors. Well i guess this kit is just another example of parts that you can already get and add to the original version of whichever car it may be and then giving it a new name. Nothing against the kit though, I think it looks pretty bad ass and gives you the convenience of having everything all in one box, unless of course you already owned the DB01 then it would be quite pointless to purchase. I wonder what the price of it is, but I'm not even gonna ask since it's probably already in this thread or a couple of clicks and types away on google. I gotta see those new belts as well while I'm at it.