Before you do something drastic. I would suggest you rent several cars that you might think would solve your problem. It might be that with the issue you have with your tailbone is not the Fusion. It might be that you have an issue with sitting in general. I have a similar problem but have been able to the adjust the Fusion seat in a way that lessens the pain I feel. In my Sport I do not have a power passenger seat and it does feel more comfortable than the drivers seat. This is mainly due to the tilt of the cushion of the passenger seat. In the past have you had a vehicle that lessened the discomfort? Just my opinion, Silver Sport