Some years back, I went looking for a Trimuph. I probably looked at every one in SE Michigan. Pretty much every one was a rusty mess, mostly along the fender trim strips. Then I saw a new one advertised and as we walked toward it, I whispered to my wife, "There's no visible rust." I ended up buying the car and still have it and still no rust! The original owner in New Jersey had put on so much undercoating no metal was visible anywhere under the car...probably 50 pounds of heavy tar applied everywhere!