XBLA (and European PSN) racer OutRun Online Arcade recently surfaced in a YouTube video (which we've courteously posted after the jump).
It looks about as fun and arcade-y as you'd expect -- realistic physics are suspended in favor of endless drifting, and cars travel at sound barrier-breaking velocities. Also making a reappearance is the series' blonde passenger, who helpfully squawks asinine remarks (such as, "I want to go far away!") as you maneuver through hairpin turns going 280 km/h. Thanks for contributing, you fair-haired freeloader.