Someone warned me to never buy a second hand car from the coast because cars rust faster and you cannot always see which hidden parts are rusted. The expectation is that cars from the coast has a much shorter lifespan than cars from the inland.
However, a sales person told us that since 2002 most car manufacturers switched to electrostatic coat painting to protect the cars against rust. He also added that most modern car's parts are made from aluminium, plastic and other materials that do not rust.
For that reason he claims that it does not matter whether you buy a second hand car from the coast or from the inland as long as the car was never painted over by a panel beater and the car still has its original electrostatic paint coat.
Is it true that modern cars rust equally fast at the coast and inland?