Automatic? £2k you say? Well, as long as you arent wanting stellar performance I can highly recommend my own car (its not for sale mind
)
£1900 bought me a '97 C200 Elegance automatic (2ltr). Trim has the major stuff - Aircon, Cruise control, CD player etc and build quality is stonkingly good as long long as you get a well maintained one. They dont suffer from all the problems that the later (W203) ones had and as one car review said, 'it feels like the interior has been carved from solid graphite'.
Its not a slow car, and on the motorway its very relaxing pulling 90mph at just under 3K revs, but its obviously no pocket rocket.