Why do Japanese cars rust?

鈥淎nything Japanese will still be prone to a bit of rust. It's because they don't use salt on the roads, so don't need rust protection.鈥?鈥淎 lot of modern rust issues are specific failures 鈥?arch liners rubbing through paint, and blocked drainage channels.鈥滿ar. 20, 2016Rusty cars: why they're not a thing of the past | Autocar