MultiGP is proud to announce our first ever Mega Class giant drone race, the Antioch Speedway Invitational.   MultiGP's first ever official Mega Class giant drone race is almost here! Running at the Contra Costa County fairgrounds during the County Fair and featuring Sprint Cars and Stock Cars along with the Mega Drones, you do not want to miss this epic night of racing. Open to a limited number of giant drone racing pilots, Mega Class drones will share the…