Honda has managed to let in everything you want from a long ride up the coast while filtering out what you don’t. The GL1800 is sure-footed, gutsy, and luxurious. It’s equally at home pootling along behind a column of tourists or, with a twist of the throttle, kicking down a few gears and rocketing past the line of gawkers when a passing zone opens up. In sport mode, the suspension firms up, the transmission holds gears longer, and throttle response intensifies, making the Wing a credible sport tourer. And yet for all that, the wind protection is better on the bike than it is in the Slingshot. You give up a roof, but the Honda’s fairing and electrically adjustable screen offer a more thorough respite from chilly blasts than the trike’s startling bodywork and flat Plexiglas half-windshield. Simply put, the Honda is not only the most thoughtfully engineered machine in the test, it’s also the one with which to best experience the California coast.