2011 Audi Q7 PRESTIGE. Audi Certified, 6 Year/100,000 Mile Warranty! Loaded with options including NAVIGATION and much more! Sewell Audi also provides Free Car Washes, Free Audi Service Loan Cars, Free Service Pickup and Delivery and Free Valet Parking at Market Street in The Woodlands for the lifetime of your vehicle. We have many more Pre-Owned Audis here at Sewell Audi North Houston, but only a portion of them are on the internet.. Many of our vehicles are not yet listed on the Internet so please contact us to find what you are looking for. Discover why so many satisfied customers have joined our growing family of Sewell Customers for Life. Sewell...Obsessed With Service Since 1911 Note: Our pricing is based upon current market conditions and will change periodically. The current advertised price is available for today only.