The data for the Volvo S40 (2007-10) 4DR Saloon 2.0D 136 SPORT indicates that the engine capacity is predominantly 95.6% from the year 1998, with a small proportion (4.4%) from 1997, suggesting that most vehicles of this model are equipped with a similar engine size. Additionally, the entire sample uses diesel as its primary fuel type, highlighting that this model is consistently diesel-powered across the dataset. This uniformity may be useful for buyers or enthusiasts interested in diesel variants of this vehicle.