I test drove the 2011 Hyundai Sonata and the 2010 Tuscon last Saturday. Both were the Limited models.
The Sonata has great styling. Limited comes with 17" alloy wheels and Kuhmo tires.
Engine is a 2.4 Theta II GDI 198HP and is quiet for a DI motor. Under hood room is plenty with air box, WW fluid, antifreeze, and battery all easy to get to. Oil filter is vertical with face up.
Trunk space is plenty, larger than my Accord visually. Did not check the specification. Cutouts in the trunk to access rear lights was pretty convenient. Comes with a spare tire, jack, etc. Noticed the rear subwoofer was located in the rear deck. Pull release for the rear seats is also located under the rear deck.
Rear seating is heated, rear headrests, has rear AC vents, and 60/40 split. I did not sit in the back seat.
Front seats were roomy, comfortable, had power adjustments plus lumbar, and leg room was greater than my Accord. I felt alot more comfortable in it overall. Navigation is an option, as well as backup camera. Bluetooth is standard. Plenty of controls on the steering wheel made me feel a little overwhelmed. Tilt and telescoping steering wheel is nice.
The drive was smooth, braking was as well. Some wind noise on HW speeds. The car drives bigger than it really is. Suspension was not stiff or too loose. Nice medium. To compare, the Impala has a loose suspension, my Accord is stiff. They make a sport model (SE) that has a stiffer suspension.
There are alot of extras I don't have time to go into. I believe it is a fair price tag of roughly 26-28k. I would probably barter lower, but right now these cars are selling.
At this time the Sonata is my #1 car on the list to purchase. I still have several more I'll be driving (Fusion, Taurus, Edge, Kia Sorento, Civic, and possibly a few more). I've already driven the Malibu, Equinox, and Impala.
As far as the Tuscon, it has excellent exterior styling except for a snubbish nose. Interior is around the same quality of the Sonata, but somewhat lesser. Same engine is quieter and has less HP. After driving it, I was a little underwhelmed. Much of this has to do with me not familiar with SUV or crossovers, I suspect. If I were in the market for one, I'd definitely give this a test drive.