Sever is the driver for the Exo Force team and is the current number one racer until Max Axel, the character you get to play, wins in the last MCR.
This is a description taken from LEGO.com. Do not modify it.
Lead Driver - EXO Force Team
If you are a Racer for very long, you will surely see the skilled and ruthless Sever on the track - he will be the one passing you by. You are not cleared for any information regarding Sever's background, tactics, or win-loss record. We suggest you ask him. (Note: the Drome accepts no responsibility for the state of your health should you attempt to ask Sever a question.)
Age: You are not cleared for that information, Racer.
Place of Birth: You are not cleared for that information, Racer.
Description: Sever has never been seen without his helmet on.