I test drove a base Sonata recently while shopping for a DD, and I gotta say, I was really impressed. For the price range I was looking in (under $20K) you get WAY more car there than its competitors, its very premium-feeling. I was very surprised.
The turbo engine sounds like good technology is being used...I'm most impressed with the fact that it takes regular gas (gotta love that) and that the turbo housing is cast directly into the manifold, pretty cool.
I am gonna hold off until I can drive the new Turbo Regal though. That what I really want and if I can swing making the much bigger payment, that's what I'll get. Hyundai is an incredible value for the money IMO. Good company too.