What is the best surface to drift on??

I drifted my cheap radio shack car on regular concrete all the time. Before i could test it on other sufaces it broke.

Gravel is my favorite ha ha, Smooth concrete foundations are great too cuz they are soo smooth and slippery, I just take off my tires and drift for around 1/2 hour! Very little load is put on the motor under these super low traction condidtions.