My car has several layers of paint when it was applied in the factory; that should offer ample protection, shouldn’t it?
• Your car would have good protection against corrosion. • However, paint could not resist abrasion, and because of poor road conditions, unprotected paint would suffer from stone chips, scraping against humps or rocks, pitting from gravel, etc. Eventually, a lot of paint would peel or scrape off to expose bare metal to corrosion.