Saturn plans to replace its dud of a small car, the Ion, with a re-badged version of the Opel Astra. The Astra is a European three- or five-door hatchback, a handsome entry-level car imbued with the kind of driving character that makes almost any car from the old country pleasurable. It cannot get here soon enough. Shown here is the 2006 Opel Astra five-door currently on sale in Europe.