They're all Yok drift tires. Groovy Drift is sponsored by Yokomo so most (if not all) of their chassis and parts are Yokomo. And it's hard (not impossible) to get long drifts like that on ABS/PVC. ON the Yok radials, to do long arches like that isn't hard at all...especially on concrete. Actually, it's quite simple. The smootheness will take some time, but it's still pretty easy on those tires. Even with the bottom of the line Yok chassis (the GD ironically), car control is very easy and fluent.