explains_.everything on Instagram: "The Rolls-Royce Phantom’s signature “floating wheel center caps” stay perfectly upright no matter how fast the car is going. It’s a small detail that took years of precision engineering to master. . . Each wheel uses a self-righting mechanism with a hidden bearing system that lets the emblem rotate independently from the wheel itself. A built-in counterweight uses gravity to keep the logo level at all times, so the iconic double-R remains still even as the tir