What is the best way to go about buying a leased Audi at end of term?

My lease ends next month and I am WAY over my allowed milleage. It would cost me $4,000 for the extra miles so I think it makes the most sense to buy the Audi A4. What is the best way to go about negotiating the purchase? Thank you!|||You'll wind up buying the car twice. The only advantage to leasing is not putting money down first. If you have a good down payment this time, call the dealer and get the purchase started.|||Contact Audi Financial or whoever holds the lease and see if they'll negotiate the buy out amount. Some leasing companies will, some won't.|||There won't be any negotiating. The purchase price will be a set price, in fact it was set when you first leased it.