Oregon Revised Statutes Oregon Vehicle Code § 801.513

(1) Was manufactured prior to 1949 or was manufactured to resemble a motor vehicle manufactured prior to 1949;

(2) May be equipped with a drive train, suspension system or brake system that is different from the drive train, suspension system or brake system originally installed on the vehicle;

(3) May have alterations to the dimensions of the original body of the vehicle; and

(4) Is not a motorcycle or an assembled vehicle.