The crank case thing happened to me, that's why I know... Must admit when it picked up and ran I was not looking at what was behind me but rather where I could safely leave the road! To get home all I did was disconnect the crank case breather pipe from the air intake to the turbo, then drove very slow home. The issue is it dosen't need much oil pick up to rev uncontrollably so there won't be much blue/black smoke. Try disconnecting the air intake to your turbo - check if it's wet with oil. Check your intercooler, is it full of oil, if yes to these questions then it's likely your problem.
Good luck
Wayne