Bought for the track but will be be used to drive to the track as well ( apart from the ring where i'll swop wheels when i get there) Have done about 60 laps of oulton park in cold and wet conditions and although conditions were far from ideal they were slightly better than street tires.

However ever once a dry line showed up (75%of track) the difference between the Kumho and a street tire was like night and day!

This is my first venture into track tires so cant compare them with other track tires.

These tires come in either a hard or medium compound (also soft or super soft for different tire sizes)and really are excellent track day tires with massive reserves of grip. Found them best running at 40psi front and 35psi back on track. Lasted a full day on the track and should be good for another 2 sessions, Tried them in the wet on ordinary roads and was amazed by the grip, they have a tread wear rate of 50 for the hard compound, as compared to about 240 for normal tires. Have run R888 but the kumho are better tires, especially when really warmed up.

After replacing some R888s with these I can't say I've noticed much of a difference. Both are extremely good tires, the V70a works great in dry and damp conditions but has some problems with standing water as they all do. I'm using the hard compound on the GT3 and they don't seem to go off as quickly as the R888s did.