Challenges are fun and/or frustrating events. The reward will be a badge which will appear on your user page (soon, when it's ready).
Currently, the following challenges are available:
|Match Made in Hell||Manage to drive a quicker lap than 00:22:500 on Narrock Pass with the Concordia II||Cookie-Badge|
|The Blind Monk||Manage to drive a quicker lap than 00:48:500 on Alexandria with Toyeca.||The Blind Monk Badge|