YOU SAID:
I would like to buy a car
INTO JAPANESE
車を購入したいのですが
BACK INTO ENGLISH
I would like to buy a car.
INTO JAPANESE
車を買いたいと思っています。
BACK INTO ENGLISH
I want to buy a car.
INTO JAPANESE
車を買いたいです。
BACK INTO ENGLISH
I want to buy a car.
That didn't even make that much sense in English.