625 ILCS 5/1-216
Every motor vehicle which has been sold, bargained, exchanged, given away, or title transferred from the person who first acquired it from the manufacturer or importer, dealer, or agent of the manufacturer or importer and so used as to have become what is commonly known as "second hand" within the ordinary meaning thereof: Provided, that a new motor vehicle shall not be considered as a "used motor vehicle" until it has been placed in a bona fide consumer use, notwithstanding the number of transfers of such motor vehicle. The term "bona fide consumer use" means actual operation by an owner who acquired the vehicle for use in business or for pleasure purposes and who has been granted a Certificate of Title on such motor vehicle and has registered such motor vehicle, all in accordance with the laws of the residence of the owner.
625 ILCS 5/1-216