Complex sentence: The fifth generation Buick Regal shares the Epsilon II platform of the Opel Insignia and first went into production in Rüsselsheim, Germany, in 2008.
Split into simpler sentences: The fifth generation Buick Regal rides on the Epsilon II platform and is the same as the Opel Insignia. It first went into production in Rüsselsheim, Germany, in 2008.