I worked for Steve Saleen thru 3 model years. He is also a registered vehicle manufacturer, like Alois Ruf. To become a vehicle manufacturer you must change a certain percentage of the vehicles parts content & sell the vehicles new while meeting all DOT & emissions standards. All this government testing is very expensive & the owners have to make a profit to stay in business. I also worked for Carroll Shelby. Both Shelby & Saleen tired of people selling copies of their parts, so they eventually sold their parts to the general public, but never the VIN plates that identified a original production vehicle. At Saleen my desk was close to Liz Saleen, Steve's wife. Her job was to authenticate true Saleens.