The European Commission does not want to retroactively change regulations on compliance with emission limits for cars, which could lead to the decommissioning of millions of diesel vehicles. EU Internal Market Commissioner Thierry Breton, in a letter to German Transport Minister Volker Wissing, who had complained about the rules, said the Brussels authority has no intention of making retroactive changes and imposing additional administrative burdens on car manufacturers. The commission also does not want to take any further measures that would penalize EU citizens who purchased cars in good fa…