It was fought. Outcome stunk and will probably have a negative impact over the whole internet given time for lawyers to act... any forum name about any car brand or model of car is now up for the same scrutiny. Mercedes lost the first time 7 years ago:
http://www.wipo.int/amc/en/domains/decisions/html/2001/d2001-0160.html
So they came back in with more money and won the 2nd time:
http://www.wipo.int/amc/en/domains/decisions/html/2008/d2008-1712.html