Streamline Diner Car

Chrome streamline diner car on a 4 x 16 m footprint, 4 m to the roof: a barrel-roofed stainless car with rounded ends, horizontal fluted chrome bands.

风格：low-poly, flat-shaded vertex colors, no textures, 3 materials: the shared opaque one plus a distinct surface (glass, water or chrome), which stays its own mesh through mergeAssets rather than merging into the rest; shares palette and scale with its kit