http://forums.mercedesclub.org.uk/cgi-bin/ikonboard/topic.cgi?forum=1&topic=598
Have a check out of the aboeve post, its from a UK MB site. 1.8 and 2 litre versions are the norm here in the UK, but we do get the 2.6 version.
Allin all they are great cars, and i would highly recommend one.