Based on the available data, all sampled AUDI A4 Avant models (2011-2015) with the specified features were manufactured in the year 2015. This indicates that, within this sample, the entire range of vehicles falls into the 2015 production year, suggesting either a limited data set or a focus on the latest models within that period. No vehicles from earlier years in this range are represented in the current data.

The data indicates that all vehicles of the specified model—AUDI A4 (2011-15) 5DR Avant 2.0 TDI Ultra—consistently feature an engine capacity of 1968 cc, and they all use diesel as their primary fuel. This uniformity underscores the model's targeted engine specifications and fuel type, reflecting a standard approach for this particular version within the specified years. The 100% consistency across both metrics suggests there are no alternative engine sizes or fuel types within this vehicle sample.