You really want to match tire models front and rear. Mixing tires is a real crapshoot, and you can get very unpleasant surprises in handling. This is more important than getting the exact OE sizes. Try to find something that is close enough...I can get the proper sizes, but not original Bridgestone Potenzas , AND having trouble with front /rears in same matching brand.
Any ideas, and max sizes that fit a stock '05?... and still retain proper tire diameters ratios of originals
For extreme summer tires, 195/55/15 - 225/45/16 are available in Dunlop and Toyo, fit easily, and put the speedometer right on. There are a number of options with 185/55/15 - 205/50/16, and they have the same rear diameter.