The japanese mazda is perhaps the best quality car from japan these days. The Ford mazda made before mid 2007 is perhaps the problematic one, but i doubt. in my experience mazdas rarely ask for parts yet I keep buying parts for toyota as much as i buy fuel. Performance wise, they are better than subarus(watu wa subaru kujeni mnitusi)
cars today dont rust easily. they are galvanized before paint. Rust is a problem for people in extreme climates and salted roads. in tropical areas, rust is not really an issue unless your car is from 1970s. If your car has been in an accident and metallic parts are scratched and damaged, you have to seal it properly before painting to keep the scratches from rusting.