bought extended warranty for b series after owning for one 1 year, thinking purchase of three year warranty would make total of 4, but no, 3 year warranty starts at purchase date. brought tc to dealer with drive motor issues assuming warranty, they fixed it to the tune of $3400.00 and then told me sorry no warranty. think they could have told me no warranty before the repair was done. second set of drive motors, only 1200 hours. would appreciate anyone chiming in with their drive motor issues and experiences.