2002 Ford Focus wipers, windshield & visibility problems

The original firestone tires (205/50r16) wear out prematurely. The vehicle becomes unsteady on bumpy, wet or snow covered roads, causing the driver to lose control. The rear tires vibrate and chatter when driving on wind roads and on open roads at highway speeds, also the rear tires were showing irregular and premature wear. The manufacturer representatives stated that improper factory alignment specification were the cause of the problems. Auto door locks malfunctions.

When the rear window, (both), is raised over a period of time,(3-5 yrs), the upper cable retainer on the window elevator,(its made of plastic), breaks off allowing the window to drop down. This is both a security& a safety issue. I have old parts I've replaced the right rear elevator in 4/07 now the left has failed.(11/07).