Not sure what the meaning may be but that translates to "You are Audi".
Du bist schön.
Bist du = are you (informal, singular)
You are strange
Wie alt bist Du? means: how old are you?
Du bist nett = you're nice, or you're kind.
I'm there when you are.
Du bist der absolute Hammer! = You are totally awesome!
Du bist so weich = You are so soft
You are fast.
"Are you with me?" That would be a translation of the question "Bist du bei mir?". The start of the sentence as in the Bach/Stölzel aria "Bist du bei mir, geh' ich mit Freuden" would be better translated as "If you are with me (or: if you're near to me), I go light-hearted (or: with gladness)".
"Are you okay?" or "What do you have?" is the translation into English.