vicky26s

Hello everyone
I am Vikram and new to this forum. I need your help and advice and this is my first thread.
I am interested in buying used Audi Q7 2008 year from a local used vehicles dealer in toronto (NOT Certified Pre Owned from Audi dealer). The car is at 65000 Kms and currently for sale at Dupont Auto Sales in Toronto.
I have heard a lot abt reliability issues of Q7 and heard that it is expensive to repair. Is it true? I believe I can not afford expensive repair bills after paying finance payments each month.
As this vehicle has about less than a year warranty left (bumper to bumper from audi), what you guys want to suggest me abt this purchase.

Should I get any extended warranty and if yes, from where?
Is there anything else I should be aware of or anything I need to check out before buying?
The car is accidental free and local canadian model. was used in toronto.

My second option is 2008 MDX Tech CPO by Acura, 55K.

Thanks.
I will appreciate if you can reply as quickly as possible as I want to final it tomorrow.