2008 Cadillac BLS. Start Up, Engine, and In Depth Tour. Link on facebook www.facebook.com Another link to contact with me vk.com The Cadillac BLS was a compact executive car marketed in Europe by Cadillac, a division of General Motors. Based on GM's Epsilon architecture, the BLS was a heavily restyled version of the Saab 9-3. The development was done by Saab and cost more than one billion kronor (approximately $140 million) to design. It was manufactured in Trollhättan, Sweden, alongside the Saab 9-3 and the Saab 9-5. Sales of the sedan began in March 2006, with a station wagon joining the line for 2007. The BLS was introduced to the Arabian, Mexican, South African, and South Korean markets for the 2007 model year.