What corporation based in Superior, Wisconsin sponsored the 2010 AMA Pro Supersport Championship?
Amsoil Amsoil Inc. is an American corporation based in Superior, Wisconsin that primarily formulates and packages synthetic lubricants and filters. The company's advertising slogan is "The First in Synthetics". The company uses multi-level marketing for distribution.
MasterCraft MasterCraft is a United States-based manufacturer of luxury high-performance boats that was founded in 1968 and is currently headquartered in Vonore, Tennessee. MasterCraft boats are the most popular and recognized brand for use in waterskiing, wakeboarding and wakesurfing, though the company has also produced several boats that are not focused on water sports.