Wis. Stat. § 218.0123: Vehicle allocations.

No manufacturer, importer or distributor shall adopt, change, establish or implement a plan or system for the allocation, scheduling or delivery of new motor vehicles, parts or accessories to its motor vehicle dealers that is not fair, reasonable and equitable or modify an existing plan or system so as to cause the plan or system to be unreasonable, unfair or inequitable. Upon the request of any dealer franchised by it, a manufacturer, importer or distributor shall disclose in writing to the dealer the basis upon which new motor vehicles, parts and accessories are allocated, scheduled and delivered among the manufacturer’s, importer’s or distributor’s dealers of the same line make.