Pewter Paint Durability
Greetings!
I have a four month old 2002 Coupe that's Light Pewter Metallic. It's made one round trip from the Big Apple to Ann Arbor (1225 miles) and many shorter highway runs to the Philly, PA, area where my folks live. It got about 4200 miles on it and the paint is absolutely stunning!
Obviously, I can't vouch much beyone the 4200 miles I've got, but the clear-coat looks absolutely awesome so far.
There are some factors to consider when you think of the paints "durability": exposure to the elements, UV exposure, road-salt, how often you clean the car, etc.
If this new baby of yours sits outside all day, the paint will suffer the effects of exposure eventually and a good "light-oxidation" cleaner should keep it looking new for a long, long time.
True Story:
Theres a guy who parks his triple-black rag-top C5 in front of my apartment building here in the heart of the Big Apple, Manhattan. I think it's a '98. He never cleans it (sinful) and the pigeons use it for target practice constantly. It gets to looking like an Dalmation in negative, big gooey white spots on black.
One day, I notice that he's actually washed the car! So I had to "inspect" the paint real up close and personal like. I was amazed at how "durable" his black finish really is, no major damage! Sure, it needed a good waxiing but you could tell that it really held up under the attack of NYC air and pigeon contributions, it really didn't suffer that much.
If your question is really about metalic versus non-metalic finishes, I really can't say. But I can say: the pewter finish is stunning, doesn't show the dirt and dust the way a darker finish will and is absolutely stunning. Did I mention how stunning it looks?
Best of Luck!