Seven or eight years ago, while on summer vacation in northern Italy, Gianluca Baldo was stung by a wasp, and he was never the same again. A friend surprised him with the gift of a vintage 1976 PX 200 Vespa—because vespa means “wasp” in Italian. It was not the same model as the Vespa scooters Baldo rode around Milan as a teenager in the early 1970s, but ultimately, it did not matter. He hopped aboard and “it triggered something incredible,” Baldo says. “The memory that that ride brought back was tingling in my…