625 ILCS 5/1-202.1: Street rod.

A motor vehicle that is a 1948 or older vehicle or a vehicle that was manufactured after 1948 to resemble a vehicle that was manufactured before 1949 and has been altered from the manufacturer's original design or has a body constructed from non-original materials and which is maintained for occasional transportation, exhibitions, club activities, parades, tours, and similar uses and which is not used for general daily transportation.