Speed Racer The Next Generation will be on Nicktoons Network starting in May
(The first episode is already available OnDemand).
It stars 'Speed' (no last name), an orphan who attends a Race Car driving academy started by Speed Racer, who mysteriously vanished some years ago.
'X' is Speed Racer's son. He's the best racer at the Academy.
The headmaster of the Academy is Spritle (Speed Racer's brother), who is voiced by Peter Fernandez, the voice of the original Speed Racer!
Oh yeah. Chim Chim's a robot.