Jimmy,
Here's a previous thread that may be of interest to you.
http://www.bmwm5.com/vbulletin/showt...t=warrentygold
Jim,
It's true that you can buy extended warrenty at anytime, and it's probably more optimal if you bought it at 47th month and 49,999 miles. However, the same warrenty coverage will cost more at that time. The analogy is that one can start buying term life insurance at age 60, but imagine the premium at that point.
CP