For the "2009 Buick Regal 1.6T Elite Sport Edition", in terms of maintenance, the warranty period for this model is 2 years or 60,000 kilometers. A minor service (oil and oil filter change, etc.) is required every 5,000 kilometers, with labor and material costs being approximately 300 RMB. A major service (oil and all three filters change) is needed every 10,000 kilometers, costing around 500 RMB. Prices may vary depending on different vehicle conditions, and the above prices are for reference only.