The design of the car is not an easy thing to use a scale and a detailed diameter for example the still rusty parts like @abudar mention in the post I think the problem of rust you can clean it by doing something like the following: Soak insideThis non-toxic household acids vinegar is among a number of household applications that are able to cope with rust. just drown the rusty material inside the vinegar overnight, then scrape away the rust in the morning. Better to use apple cider vinegar than white vinegar. Although white vinegar can also be used, it is not as effective as apple cider vinegar. Although vinegar is effective, it is relatively mild. you may need to soak the item longer than just overnight; soak in a day may be better. .after lifting the rusty stuff from vinegar, dip the aluminum foil polisher into the vinegar and scrub the stuff and remove the rust easily. then what about the case with your car which is 50% assembly stage. just simple @abudar, 4 Ways to Clean Rust on CarSuper FastRust is one of the most common diseases in vehicles including cars. Rust can be caused by many things such as frequent cars exposed to water, heat, or anything that contains high salt and iron. carats usually attack the car on the part of zinc or iron that will eventually make the car body becomes porous little by little and become brittle. Rust on a car is a natural and unavoidable process.
find the answer on the official website: https://showroommobil.co.id/tips-dan-trick/cara-clean-karat-on-cars/. Similarly, suggestions and stages of the next process for your new car @abudar thanks By @anandafris