2001 Buick Century Custom 4dr Sedan (3.1L 6cyl 4A)
It seems that this model was either spectacular or failed after 33k. Mine seems to be a spectacular one. It has close to 175K and still runs great. It has mostly run on the old green coolant rather than the DEXcool (everywhere you could put coolant it is labeled 'green' from the previous owner). I get an average of 27 MPG from mixed city and highway driving. Once I got 40 on highway! The car is in pretty good shape.
The cup holders are the the best position for me.
The window problem. The driver window panel is troublesome and if you just roll down the back windows it hurts your ears.