Salzburg – The debate about the private car tunnel, which billionaire Wolfgang Porsche wants to build through the Kapuzinerberg in the city of Salzburg, is now enriched by an expert opinion. The city of Salzburg has been available since Wednesday morning. A Viennese expert in real estate consumption considers the sum that Porsche paid once for the use of the city ground. Specifically, 35,304 euros as a compensation for the property disadvantage of the landowners are adequate. Porsche put a single 40,000 euros. The report was commissioned by the city of Salzburg and paid by Porsche.