Surely bright red should be accepted? It has been in past sentences.
After all "I'm a Barbie girl in a Barbie world" is from a Danish song...
Wait a minute. I thought if "she" is arriving in "her" car it would be hendes lyserøde bil. Is that a typo or is that because there is an adjective between the word "her" and "car"?
sin/sit/sine are reflexive posessive pronouns (only in the third person)
If the object of owned by the subject of the phrase, you use sin.
Why is She comes in her pink car wrong?