In this week's blog: Driverless cars are becoming something more than Google-customized Priuses being tested in a few states - now it's starting to look like a competitive segment; Green Auto Market has survived an onslaught of phony reader comments, or spam; Tesla is competing with BMW in its homeland; and more.The Article Automakers Rolling Out Driverless Cars / Spam Attack Defeated / Tesla vs. BMW appeared first on Automotive Digest.