my car only has 91,000 miles on it and i was wondering if there is any warranty that i can still claim?

 

I doubt it at that milage. Did you buy the car brand new or used? You can check for TSBs and recalls for parts assocaited with your vehicle using the link at the top of the page.

 

50,000 is the limit as far as i'm aware of

 

Can you claim rust? Dont get get 10 years with that? My trunk is starting to bubble around the emblem. Worth asking.

 

Not for general parts. There are specific TSB and recalls in the US (assuming you are here). Audi USA has extended the warranty for sludging of the 1.8 engine and for timing belt breaking, and for front lower control arms. However, these are very restrictive.