So I realized today that my insurance company has the wrong vin for my tC. The last 5 of mine are 20647. They had 20648. So I called immediately to correct it. When they changed it, the customer service rep told me that my rate would go up by $30 due to the change. I can't figure out why the car that came off the assembly line after mine would be $30 cheaper to insure. Unless it has side air bags, then it's probably the exact same as my tC. Any other ideas?