Modifies provisions relating to motor vehicle assessment valuations

HB 816 modifies property tax assessment rules for motor vehicles and certain other assets. It specifically lowers the tax assessment rate to 5% for historic motor vehicles (registered under §301.131) and qualifying aircraft (25+ years old, noncommercial, <200 annual hours). This change directly affects owners of these vehicles by reducing their property tax burden. The bill also requires assessors to provide detailed evidence, such as comparable sales data, when using computer-assisted valuation methods for property. These adjustments aim to align tax assessments with specific property classifications under Missouri law.