Randy Holt, owner of Hobbytown in Toms River, NJ, takes us inside the world of Mini 4WD Racing - a venerable pastime experiencing a new boom in popularity. Randy breaks down the engineering challenges that Mini 4WD drivers need to overcome, and all the tiny gear and tech they use to make it happen. And to help you get started on your own Mini 4WD obsession, Randy unboxes and explains how to assemble a brand new Toyota Gazoo Racing WRT Yaris WRC.