The data indicates that the majority of the Mercedes-Benz C220 4DR Saloon (2014-19) models from the fitted sample were manufactured in 2017, accounting for approximately 79.7%. A smaller portion, about 20.3%, were produced in 2018. Notably, there is no data for 2014, 2015, 2016, or 2019, which suggests that the main distribution of this model's production within the sample occurred during 2017 and 2018, with a significant lean towards 2017 manufacturing.

The data indicates that all sampled Mercedes-Benz C-Class (2014-19) C220 4-door Saloon vehicles with the specified trim are equipped with a 2.1-liter diesel engine. Additionally, 100% of these vehicles primarily use diesel fuel. This suggests a consistent engine and fuel type configuration within this model and trim, highlighting a uniformity that may be useful for buyers or fleet operators seeking diesel-powered vehicles with 2.1-liter engines.