Wales Air Ambulance's response vehicles are now equipped with the rumbler siren. The third pack included "Side Arms", "The Speed Rumbler", and "Exed Exes". A related breed is the American Giant Rumbler which is a further development. The Kentucky Rumbler opened in 2006 to great reviews. The Kentucky Rumbler was Pike's first solo design. Other Italian collaborations were "Vasco Comics" (2007), "Rumbler" (2008) and "The Odissey" (2011). In 2006, the park added the Kentucky Rumbler wooden roller coaster. The Kentucky Rumbler was operating along with other smaller flat rides open. The Kentucky Rumbler was constructed with 80,000 bolts and 1.5 million nails. The Royal Enfield Thunderbird is known as Royal Enfield Rumbler in export markets. The Rumbler was developed by Federal Signal Corporation as an "intersection clearing device". Among many other positive reviews, "Rumbler" received four stars in "downbeat". Kentucky Rumbler is a wooden roller coaster at Beech Bend Park in Warren County, Kentucky.