The winner is: BMW 530d! 1. 530d The typical case under the Diesel Sedans: cultivated, strong, economically. It makes when driving to most joy and offers at the same time much comfort. Disadvantage: high price. 2. Audi A6 3.0 TDI The second winner shines with sumptuous space offer, cultivated Diesel and all-wheel drive at the favourable price. Comfort and consumption are however not its strength. 3. E320 CDI: Handling and drive qualities are not any more first class. Still in the best way: Comfort and consumption.