"Toyota will use seven vehicles to demonstrate road-to-vehicle and vehicle-to-vehicle information-exchange technologies. Five units of the Lexus "LS460" will be used to demonstrate such technologies on roads in the Odaiba urban development area on the Tokyo waterfront and on the expressway servicing it, while one Lexus LS460 and a Toyota "Crown Hybrid" will demonstrate Radar Cruise Control with All-speed Tracking and Intelligent Parking Assist (with parking-space recognition) next to the area's National Museum of Emerging Science and Innovation."
Read more about Toyota's cooperative safety research on their ITS website