The power in an automobile is produced by internal combustion. You might try this experiment under the supervision of your science teacher.
Go far away from any lighted fire. Place two or three drops of gasoline in an empty can with an open top. shack the can to mix the gasoline with the air. When most of the gasoline has evaporated, bring a lighted match close to the can. Hold the can at arm's length from you as you do this.