So called ceramic coatings are the most durable coatings on the market, but I wouldn't believe all the hype regarding ceramic coatings, they do have much better durability than the usual polymer sealants, a lot are marketed with fancy names and wording to make out they are some amazing hard coating, talk of curing and the need to wet sand them off which I have found to be rubbish, the claims that they last 5 years + are also rubbish,at the end of the day all coatings are just a microscopic layer on your car, the key to keeping your car looking good for longer is a regular safe wash procedure followed by applying a wax/ sealant on a regular basis, you could protect a new car with a cheaper wax and along side that do a good regular wash procedure and it will look better then any car a year later that's had a ceramic coating and a poor wash procedure during its year.