I really don't get it....
WHY do you need "special" tires just for Drifting!?
Who cares if the LFS tires do worn out just like real life (LFS is pretty forgiving with the 'Normals', we LFS drifters perform drifts above 150km/h all the time, and we could last for several laps, try that in real life and your tires would be toasted in no time), that's just how tires are and its also the fun part of sliding your car around the track.
LFS needs no "drift tires", all they need is even more realistic tire physics (pretty realistic now, but there's always room for improvement), while we drifters, should focus more on perfecting our skills instead of thinking about specially made tires for drifting.