SMC on Instagram: "On a stretch of Road 37 in Hungary, engineers carved grooves into the asphalt so precisely that when a car drives at the exact speed limit, the tires sing. 🎵 The melody you hear isn’t from a stereo. It’s built into the road itself. The key? Timing. The grooves are spaced so carefully that only at the correct speed does the full tune emerge. Stray too fast or too slow and the song distorts. It’s a moment where infrastructure becomes art, and driving becomes a listening experie