simply '차' is also often used for 'car'. (yes it's the same word as 'tea')

What's often used for car? 차 or 자동차? And is there any difference of meaning from the two? Thanks

Other questions didn't accept car but automobile.

hanja : 自動車(자동차)

That cha is used for both car and tea? Why ? I an confused now i got a question wrong because of it