"Four yellow cars"

Translation: Quattro macchine gialle

[sr.sovic]

Is there a reason "quattro automobile gialle" is not acceptable? I feel like there has never been clarification on when to use "automobili" vs. "macchina"

[giuliap]

Quattro automobili gialle also works. Perhaps you wrote "automobilE" (singular)?

[Lloydo3000]

Or giallO, like I did