 Two Swedish shipping companies, Trans Oil Shipping and Rex Shipping, decided to form a new company for providing car/passenger ferry services between Sweden, England and the Netherlands.The new Tor Line (an abbreviation of Trans Oil and Rex) ordered the construction of two state-of-the-art ferries from Lübecker Flender-Werke in West Germany.These entered service on the Gothenburg—Immingham—Amsterdam route in 1966 and 1967 as and , respectively.