If you are looking to lower your payments then stick with your Mazda. When you factor in the continuing repair costs associated with a low quality C class (02 was a VERY bad year for the C), shop time billed at $80-150/hour, and just plain bad build quality, you will be very disappointed with the car. The Mazda3 is a good car for the price. Stay with it. Its no less than 10 times more reliable then an 02 krapressor.