Just wanted to post this photo : my center caps are now over 27 years old and with nearly 100,000 miles on them, as well as hundreds upon hundreds of car washes . I don’t know if they’re still available , but they were a limited aftermarket edition of a cloisonné finish cap, secured with inside pressure screws so they can’t be removed without the wheel coming off , and even then you need special tools to twist the screws . IIRC, they were either $ 800 for the set , or maybe more , but if they still look brand new after all these years and miles , I think it was worth it ..