(b) Where in the course of interstate operation of a vehicle registered in another state it is desirable to retain registration of said vehicle in such other state, such applicant need not surrender but shall submit for inspection said evidences of such foreign registration and the department upon a proper showing shall register said vehicle in this state but shall not issue a certificate of title for such vehicle.
(c) In the event application for registration and certificate of title is made for a new vehicle purchased from a dealer outside this state, a certificate of title shall not be issued for such vehicle nor shall such vehicle be registered by the department unless and until such application shall be accompanied by a certificate of title or a manufacturer's certificate of origin, or if the state of purchase does not require a certificate of title such application shall be accompanied by a manufacturer's certificate of origin, accompanied by evidence that such seller is a bona fide dealer of the state in which such vehicle was purchased.