Along a cobbled street in Turin, the whitewashed front beneath a half-century old sign saying “Cioccolataio” may look like a scene out of a Truffaut film. But it’s actually just another trophy. Ferrari NV chairman and Agnelli scion John Elkann acquired a stake in Peyrano, an artisan chocolate maker and retailer founded in 1915, out of liquidation just before Covid-19 hit. He’s been showing it off to his rich friends ever since.