Hanover’s Lord Mayor Belit Onay is calling for parking to be made more expensive for sports utility vehicles (SUVs) on environmental grounds, as Paris prepares a referendum on the issue. “The trend towards ever more and ever larger and heavier cars continues,” he told Berlin’s Tagesspiegel newspaper. “That’s why I’m very much in favour of tiered parking fees based on the length of the vehicles.” Parisians are voting on the issue on Sunday in a referendum that asks residents whether fees in public car parks should be tripled for heavy SUVs. That would raise parking fees for one hour in central …