The R40 is an efficient chassis and not only that can sport some serious high output motors.
I own an Racer2 as well (hopped up rs4-2 version). I ran exclusively rubber tires on the racer2 and last time I used it on the track felt like drifting it (since its old and bypassed now , its kinda my beater now).
Anyways beyond all that. Drift is a driving style + chassis setup. You can easily make anything drift , just drive it correctly.
On a side note I placed some rubber slicks on the R40 and with an overly strong motor , any sort of gas on a turn would result in the rear end kicking out or just resulting in a very slippery feeling car. Im sure good enough to drift with.
I tried playing around with some drift tires on my rs4-2 , it could barely move without doing instant 360. I even would take it up to speed slowly , then mash the throttle at high speed and instant 360's still. So maybe just a old slick would work (to where there isnt much traction left).