The warranty date is from the day it is actually driven off the lot and put under the first owners name. If in fact they didn't actually purchase it until Jan 25, 2001 then you have the remainder of 1/2 of the original warranty since you are the second owner. So, if the original warranty was 10 years 120,000 miles then you get 5 years 60,000 miles etc. The 5 years would be from Jan 25, 2001, so you would be covered until Jan 25, 2006. The same should apply for the bumper to bumper coverage (different time frame), but I'm not sure what the original warranty was on the 99.