Hot Wheels Track Builder System Mega Set This mega set includes 4 1:64 cars to get you racing right away and The Total Turbo Takeover set The Curve and Speed packs deliver dynamic, pro driving stakes As your car races by Area 68, you will be amazed when a UFO zooms toward the sky! High above the track, a giant cargo container swings wildly back and forth; Do you have the raw power to drive through in time? Have a barrel of fun with the Barrel Drop and get ready for an extra bang with the Cannon Launch!