Wikipedia
Simraceway
Simraceway was an online racing simulation that hosted live, multiplayer racing events. The race environment was developed by Ignite Game Technologies, Inc. The service used a client-server software model similar to popular online games such as World of Warcraft allowing the racing environment to be continually updated.
Simraceway allowed racers to compete online for free or prize-based competitions monitored by professional race marshals who encouraged fair, competitive racing. The service was free to join and went into full release in November 2011. The servers were shut down on August 14, 2016.