Much of the product's extended gestation focused on user testing, the refinement payoff of which is evident.

ENGADGET: Switched On: Dash delivers open roads, open questions (Part 1)

In 1990, when GM initially invested in Saab, the thinking was that GM could help improve Saab's quality and overall refinement, while the Swedish brand would add some luster to GM's generally dull product portfolio.

CNN: The fate of four GM brands