Mr. Carreño has conducted vehicle fire investigations and mechanical investigations and on transportation vehicles as well as vehicle inspections in the aftermarket warranty and insurance industries including warranty and insurance fraud. He is an expert witness in vehicle mechanics and vehicle fires and has assisted in trial preparations. Mr. Carreño is one of the founders of Automotive Inspection Services Ltd. He was President of Available Limousines, Ltd., a limousine service covering the greater New York metropolitan area. Mr. Carreño worked as a warranty administrator for Volkswagen of America, Inc. where he conducted policy review, assisted in policy procedures as well as administered claim processing. He was CEO and President of Europa Automotive, Inc. a full service and repair facility specialising in high-end performance and luxury vehicles.
Mr. Carreño has been a service manager, service advisor, shop foreman, and technician for new car dealerships and independent repair facilities. He was the service manager and chief instructor for a mobile automotive inspection company specialising in used car buyer's inspections.