Based on the available data for the Mercedes-Benz E-Class (2002-06) E280 4DR Saloon 3.0 CDI Sport Auto, it is evident that the majority of these vehicles (99.6%) are equipped with an engine capacity of approximately 2.987 liters, with a very small proportion (0.4%) having an engine around 2.978 liters. Importantly, all vehicles in this sample are powered exclusively by diesel fuel. This indicates a strong uniformity in engine size and fuel type for this particular model, suggesting that buyers should expect a consistent engine specification across these vehicles.