BMW sharpens-up its classic four-seat hardtop cabriolet; Road Test Editor Howard Walker breaks out the SPF30! You have to love a car that's painted an awesome shade of what BMW so creatively calls Snapper Rocks Blue Metallic. Snapper Rocks. I've wracked my brain to fathom just how the bluey-aqua color adorning the latest ‘18 BMW 430i convertible I've been driving, has anything to do with rocking snappers. But I'm at a loss. "Snapper Rocks down by the docks, just waiting for the hook. Snap...