Ordered a 2016.5 HSE Lux and am wondering about rust proofing. I have kept my last 2 vehicles around 10 yrs each and neither had any after market rust protection and neither had rust problems. I bought a BMW x series last year and everyone was telling me I should apply rust proofing. I didn't and now people are again telling me to do it right away when my disco arrives. Seems gimmicky to me. I don't see cars with rust problems like I did in the 80's. Is this protection still needed or is it and old school mentality? Let me know what you think.... I can be convinced 