Before attempting to install them, you should:
* Check your owner's manual: This will list the recommended tire sizes for your specific Caravan Sport model. This is the most definitive source.
* Check the tire placard: This sticker, usually located on the driver's side doorjamb or inside the glove box, will also specify the recommended tire sizes.
Using a tire size calculator (many are available online) can help you compare the overall diameter of the P225/70R15 to the recommended size. Even a small difference in diameter can cause problems. It's crucial to match the diameter as closely as possible to avoid complications.
In short, while it *might* physically fit, it's highly advisable to stick to the manufacturer's recommended tire size to ensure safe and proper operation of your vehicle.