The data for the Mercedes-Benz E Class (2006-09) E220 4DR Saloon 2.2 CDI Executive Auto indicates that this model predominantly features an engine capacity of around 2148 to 2149 cc, with a slight majority (62.3%) having a 2148 cc engine. Notably, all vehicles in this sample are powered by diesel fuel, suggesting that diesel is the exclusive primary fuel type for this particular model. This underscores the model's emphasis on diesel engines, likely reflecting market preferences or manufacturing choices during that period.