My underpowered little rental car revved with all its might to ascend a comically vertical, single-lane road up the mountain. In the passenger seats sat two of my closest friends—usually chatty but now both wide eyed, white knuckled, and completely silent. “Please, please,” I muttered, “no one drive down and make me stop.” Before coming to Madeira, I had considered myself thoroughly competent at driving manual. But in Funchal, on this excruciatingly slow, endless climb, I had met my match.