The data for the BMW 3 Series (2005-12) 325I 4-door saloon 3.0 M Sport Auto indicates that nearly all vehicles (96.9%) are equipped with a 2.996 cc engine, with a small minority (3.1%) having a 2,500 cc engine. Additionally, the entire sample (100%) runs on petrol fuel. This suggests that the predominant engine option for this model is the 3.0-litre petrol engine, with very few variants using a smaller engine size.