My buddy has an rs4-3 with the drift conversion. He only runs the rear drift tires and we have been having a blast doing cone slaloms and whatnot. I tried driving it, but it's a bit of a handful for me since I'm used to my rs4-1 with road tires and grippy suspension setup. He bought his as an RTR used for 200 bucks on ebay, so I'd say it's worth it if you can find a deal like that, but it's probably not the best drift setup for the money if you buy everything new...