The data indicates that the majority of Vauxhall Astra (2015-20) models, specifically about 89.6%, were manufactured in 2019, with a smaller proportion of 10.4% from 2018. This suggests a significant concentration of these vehicles from the most recent model year within the dataset, possibly reflecting higher availability or demand for 2019 models compared to earlier years.

The data indicates that all vehicles of the Vauxhall Astra (2015-20) 5-door hatchback with the specified trim are equipped with a 1.6-liter Diesel engine. Additionally, every vehicle in this sample uses diesel as its primary fuel. This suggests a consistent engine and fuel type configuration across this model range, reflecting a standardized specification for this particular vehicle version.