YOU SAID:

I like cars, that are fast

INTO JAPANESE

私は車が好きで、速い

BACK INTO ENGLISH

I like cars and they are fast

INTO JAPANESE

車が好きで速い

BACK INTO ENGLISH

I like cars and they're fast.

INTO JAPANESE

私は車が好きで、速いです。

BACK INTO ENGLISH

I like cars and they are fast.

INTO JAPANESE

私は車が好きで速い。

BACK INTO ENGLISH

I like cars and they are fast.