Hot Wheels cars are hitting the road for the brand's 40th anniversary. A free event featuring life-size versions of the beloved toy cars will be held at locations around the country. The road show will include the display of a one-of-a-kind diamond-encrusted Hot Wheels car created in honor of the anniversary and the production of the 4 billionth car. The event will also include historic Hot Wheels memorabilia, autograph sessions with Hot Wheels designers, and other offerings. On Aug. 24, the traveling show hits the small town of Speed in Phillips County, north-central Kansas. For more information on Hot Wheels and 40th anniversary activities, cruise over to www.hotwheels.com/40th.