Re the wheels; it's not any particular model, a number are susceptible but IIRC they are 19" rims. Just lightweight rims and crappy roads, I expect.
Re super guard - agree the car has to be prepped properly for it to be of any benefit. As the stuff only costs around £20 the dealers make a lot of profit on this, you would be better off getting a discount on the car price and doing it yourself (or, when the OCD starts to kick in, getting the car detailed). I had it on one of my cars ( as a freebie) but ended up polishing the car shortly afterwards as the paintwork wasn't as good as I wanted.
Tapatalking...