I got what I think most ppl did, car - same - 4BUs, house - same -10 BUs, oil tanker - down - 4 BUs, Bridge - down - 3 BUs, Earth - down - 12BUs.
But I feel like some of these, I would still make the model bigger, like I could see myself making a detailed 30 BU bridge, or a 40 BU oil tanker, depending on its purpose. Even the Earth, depending on what it’s used for, 12 BUs seems small especially if you wanted any detailing, continents and such, I don’t know. A 12 BU earth just feels really small unless it’s for a model with the moon or something.