YOU SAID:
i'm in my mum's car vroom vroom
INTO JAPANESE
私はママの車の中にいる
BACK INTO ENGLISH
I'm in Mom's car.
INTO JAPANESE
ママの車に乗ってる
BACK INTO ENGLISH
She's in Mom's car.
INTO JAPANESE
ママの車に乗ってる
BACK INTO ENGLISH
She's in Mom's car.
That didn't even make that much sense in English.