Rost

The other day at the pump (I was on the way with the 80 he Avant my girlfriend) a V8 drove to the tank which an old man drove.I of course got in the conversation with him immediately he told me he bought the V8 1988.Then I asked Him when he had the last timing belt change.He only meant the change?I said all 90000 , how much Km did the car have down? He said he didn't know I should look.I looked and thought I didn't look right, he actually had only 89,000 Km down!! I told him that it was high time to change, especially because the strap is already 18 years old.Then he said na then I must let him change, but they look at my threshold at the front of the car lifter.I could hardly believe it but he was really rusted in the front but otherwise the car had not a single rust bubble and inside it looked like new.And now the question to you how to fix something like that best?I had to promise him to inquire. Greetings.