when the oxygen in the air reacts with the humidity on steel it makes it want to return to its natural state wich is iron oxide that is why you must keep the paint in good condition
harmful
Depends on the climate they kept in.
they are made with a paint and certin metals
The salt and the water will erode the metal
He was baby blue
Wreck
They get very rusty if you just leave it there without ever using it.
As far as I know, there were only 13 Rusty Wallace Signature Edition 97 Thunderbirds produced.
They may become unsafe to drive due to rust weakening parts of the car.
One reason would be exhaust fumes may enter the cabin area.
roadways are wet , salt is used on roads to melt ice and it corrodes steel .
The car is safe due to the strength of the body. If it is rusty the strength goes away quickly. Also all the brake and steering parts are mounted to pieces that rust also.