What type of person buys a Mercedes?

I am writing a marketing plan for a Mercedes dealership in the UK. I
am looking for information to segment customers who are active in the
new and used car markets to build up a profile of the type of person
who buys a Mercedes. The kind of areas I would hope to build an
opinion on include:

Age group
Income levels
Family size
Social Class (A, B, C1, C2, D, E)
Geography (UK)
Type of house
Favorite Newspapers and Magazines
Internet usage (Y/N)

?and anything that would help me build up the profile of buyers.

Happy bonfire night!

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Clarification of Question by josh1982-ga on 05 Nov 2005 13:33 PST

In case you hadnt guessed, this is a hypothetical plan - if I worked
for Mercedes, Im sure Id have a somewhat larger budget! Any help would
be much appreciated...