YOU SAID:
I have a race car in the back of the trunk
INTO JAPANESE
私はトランクの後ろにレースカーを持っています
BACK INTO ENGLISH
I have a race car behind the trunk
INTO JAPANESE
私はトランクの後ろにレースカーを持っている
BACK INTO ENGLISH
I have a race car behind the trunk
That didn't even make that much sense in English.