My experience is that cars manufactured in the past 10 years can withstand salty rust belt winters with little or no corrosion. I'm sure metallurgy varies between manufacturers but I think you're underestimating how much practices have improved.
GP is incorrect. Rust is not the issue for avoiding steel.
It is weight. Period. Every group at every mfg is given a weight reduction goal per model line and refresh. Vehicle network systems had a bullet point not of safer, or easier, or redundant, which it is none of those things - but low weight as you can cut a lot of copper out.
SV_BubbleTime|1 year ago
On the automotive scale, rust is a solved issue.
Nickle dip, electro deposition coatings, powder coating, salt spray testing, limited exposed welds.
GP is incorrect. Rust is not the issue for avoiding steel.
It is weight. Period. Every group at every mfg is given a weight reduction goal per model line and refresh. Vehicle network systems had a bullet point not of safer, or easier, or redundant, which it is none of those things - but low weight as you can cut a lot of copper out.