127 Diesel Wagon models carry a Cars-Data.com Score, spread across 5 price classes from €10,664 to €153,955. Each car is scored against the others in its own price class — not against the whole catalogue.
So this list answers "which car most outclasses its price peers", not "which is best outright": a €10,664 car can and does outrank a €153,955 one. Prices are shown on every row so you can see which class each result came from.
The Cars-Data.com Score is a weighted composite of five measured dimensions — performance, efficiency, eco, value and practicality — each expressed as a percentile against cars in the same body type, fuel type and price class. The weights are ours and they are published. One variant per model is listed: where several trims qualify, the highest-scoring one represents the model. Cars without enough measured data to score are not ranked rather than being given a guessed score.