"The car is cool."
There is usually more than one correct way to say something; that's not unusual at all. The question is whether you can distinguish between the correct forms and the incorrect forms.
Everywhere else has taught me "car" is just 차. It's just the short version of the same word. Like auto/automobile, or fridge/refrigerator.
I understand it's because 가 shows the topic word. Since 차 ends with a vowel it's 가. If it ended in a consonant it would be 이
It means "coolness" so if you say 난 멋있어! It literally means "I have coolness" (which is "I am cool")
If you're wondering what it means, it's basically "coolness" or the concept of being cool.
I learned on Lingodeer that car is 차 but I see that 자동차 is also car?? Which is correct?!