The data indicates that nearly all BMW 3 Series (2005-12) 335i 4-door saloons with the M Sport package are equipped with a 2979cc (approximately 3.0L) petrol engine, accounting for 96.4% of the vehicles. A small fraction (around 1.8%) have a 3000cc engine, and an equally small percentage (1.8%) feature a 2900cc engine. Notably, all these vehicles use petrol as their primary fuel type. This suggests that the 3.0L petrol engine is the dominant specification for this model, with very limited variation in engine capacity or fuel type.