The data indicates that all vehicles of the model 'AUDI A4 (2008-12) 4DR SALOON 2.0 TFSI 211 SE' are equipped with a 1.984-liter engine, accounting for 98.6% of the sample. A small minority (1.4%) have an 1.798-liter engine. Notably, every vehicle in the sample uses petrol as its primary fuel type, highlighting a consistent fuel choice across this model range. This suggests that the vast majority of these vehicles are powered by a 2.0-liter petrol engine.