verb [V +adv./prep.] (of a person or vehicle) to move forward very quickly, especially in an uncontrolled way.
Example sentence:
The nervous passengers gripped their seats and exchanged anxious looks as the bus careered down the icy road.
The vehicle careered across the road and hit a cyclist.
grip
/ grɪp; ɡrɪp/ v
(-pp-): take and keep a firm hold of (sth/sb)