YOU SAID:

I broke into someone's car.

INTO JAPANESE

私は誰かの車に押し入った。

BACK INTO ENGLISH

I pushed into someone's car.

INTO JAPANESE

私は誰かの車に押し込んだ。

BACK INTO ENGLISH

I pushed it into someone's car.

INTO JAPANESE

私はそれを誰かの車に押し込んだ。

BACK INTO ENGLISH

I pushed it into someone's car.