This is a very disturbing issue. I have a 2016 Shaker that I purchased last Monday. I was thinking that I was ready to finally keep a Challenger and this one was as good as any I've owned. I remember buying my first Challenger in October 2008, right before the election and I have owned more than my share of new Challenger's in between. I never had one with a rust problem. I am wondering a couple of things: Does the rust issue become more likely if you live in states that have snow? I live in Alabama. No snow but lots of rain at certain times of year. If just exposing the car to water is a problem then we do have warranties for rust. I think it's 100k miles or six years on a 2016. Every year may be different. When the OP is referring to foam are we taking foam like they use to fill spaces when building a home that comes in a spray can or something else that absorbs moisture. If someone could be more specific this would help. Considering the amount of money I have enjoyed spending on my cars I would be willing to explore legal action. I don't think class actions do much for the individuals in the suit. I would think that owners would want to recover as much as they could personally in damages if this can be proven to be a problem that effects every car built. A recall is probably warranted if every car built is going to rust prematurely. I would like to here more detail. I have seen the photos. The car shown looks like a Charger to me but all cars built at Brampton may suffer from this issue. I want to know a lot more detail.