The data indicates that all vehicles in the sample are equipped with a 4.134-liter (approximately 4.2-liter) diesel engine. Additionally, 100% of these vehicles use diesel fuel as their primary fuel type. This consistency suggests that for the VW Touareg models from 2010 to 2014 with the specified features, the engine capacity and fuel type are uniform across the sample, reflecting the typical specifications for this particular vehicle variant.