Depends on the climate they kept in.
harmful
they are made with a paint and certin metals
The salt and the water will erode the metal
He was baby blue
Wreck
JV killed Rusty because she became too fat like jollibee JV hates Jollibee Putol ulo ni Rusty gamit nail cutter
They get very rusty if you just leave it there without ever using it.
His kittypet name was Rusty, then he became Firepaw, then Fireheart, then after Bluestar died (stupid tigerstar, grrr) he became Firestar. rusty firepaw fireheart firestar[i hate tigerstar!!!] I agree I hate Tigerclaw/TigerStar :( i hate tigerstar also but he is funny,as a kit in Bluestars Prochey
As far as I know, there were only 13 Rusty Wallace Signature Edition 97 Thunderbirds produced.
It was either that sunlight grew the plants long ago that became the fossil fuels for cars, or that the heat from the sun creates energy to power the cars.
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.