The data indicates that among the sample of Mercedes-Benz E-Class Coupé & Cabriolet vehicles (2009-13) with the specified model, the majority—approximately 69.2%—were manufactured in 2011, while the remaining 30.8% were produced in 2012. This suggests that 2011 was the peak year of manufacture for this particular model within the dataset, which could imply higher availability or popularity of vehicles from that year during the observed period.

The data indicates that all Mercedes-Benz E-Class Coupe & Cabriolet models from 2009 to 2013 with the specified description are equipped with a 2.1-litre diesel engine and exclusively use diesel fuel. This consistency suggests there are no petrol variants within this particular dataset, highlighting the model's focus on diesel powertrains during this period.