Ive heard they actually are. But i guess they are expensive. And they are not easy to come by second hand. But there are no aftermarket spacers or adaptors that alter from 4 to 5 bolt fitment. At least not that i could find when i was looking for the same thing. Ive eventually got a set from a Scorpio 4x4. Its only the front ones that are hard to find. Rear ones are easy.