I went looking for one today, and the dealer very kindly let me take one home overnight.

What I found was:

1 The windows dont go auto up or down, but the switch feels like it should. Is this normal?
2 There is a rattle at the front of the engine. It seems to coming from one of the idler pulleys, just to the left of the air conditioning compressor.

The perfomance seemed somewhat strange. At one time, there seemed to be plenty of power, the next time I put my foot down, not a lot happened.

Does anyone have any comments?

 

...maybe yuou should look for a 430 r clk55...oh yeah...get an extended warranty too

 

Sounds like that car is a P.O.S.

Yes, the windows should have a "auto" function.

I would take it back and move onto something else.