Complex sentence: Based on GM's Epsilon architecture, the BLS is a rebadged and highly redesigned version of the Saab 9-3 and is manufactured in Trollhättan, Sweden, alongside the Saab 9-3 and the Saab 9-5.
Split into simpler sentences: Based on GM's Epsilon architecture, the BLS is a heavily restyled version of the Saab 9-3. It was manufactured in Trollhättan, Sweden, alongside the Saab 9-3 and the Saab 9-5.