At the end of the day, a bulldozer is tired and gets ready for bed by going to the Wiggle and Shake for a bath, to the Sip and Slurp for some dinner, and to his room to choose a bedtime story.

After a day at the track, zipping and zooming, a race car is tired and ready for bed. He washes his rims, fills his tummy with oil, and chooses a book that is all about speed. All toasty and warm he drifts off to sleep, he shifts into gear . . . and dreams of the race.