|Color: Purple and Gray|
|Occupation: Delinquent Road Hazard|
|First Appearance: Cars|
|Voiced by: Jonas Rivera|
Boost is a 1994 Mitsubishi Eclipse and the leader of the Delinquent Road Hazards.
When Boost was younger, he worked at a garage for elderly cars where he befriended a drop-tank racer. Now Boost is the leader of the Delinquent Road Hazards.