My new car has rust marks on it. Should the dealer fix this issue?

I just bought a new Volkswagen Golf. I polished the car as it felt slightly gritty on parts of the roof. When working on the roof, I saw some rust marks on the driver's side side where the roof meets the...

What small family cars would you recommend?

My son wants a car the size of a Ford Focus or Mercedes-Benz B-Class. Which would be your first and second choice and is there a car in that group he should not buy? I would very much appreciate your guidance.