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Thank you for your interest in the 2016 BMW 6 Series 640i Gran Coupe. ① Every vehicle undergoes a 360-degree professional inspection to ensure transparent vehicle condition. ② All vehicles for sale in our store are guaranteed to be accident-free, fire-free, and flood-free, with accurate mileage, and come with a 90% buyback guarantee, along with a one-year or 30,000-kilometer warranty. ③ All vehicle documentation is complete, allowing for normal ownership transfer. ④ We support installment payments, trade-ins, free vehicle appraisals, and consignment sales nationwide. All staff at Beijing Zhongteng Yuanda warmly welcome you to visit our store and view our vehicles.