I own a Kia Optima (same as Sonata) and recently rode in an '08 Camry. It's strange to me how this reviewer goes on and on about how great the Camry is compared to the Sonata, but I couldn't disagree more! The Camry had very hard, uncomfortable seats in comparison. The ride wasn't any smoother on rough urban streets. Still quite rough. The engine was very annoying to listen too. Buzzy, and louder than Sonata. It was roomier, but interior finishes looked cheaper than Sonata in my opinion. And when you shut the doors, as with every Toyota I've experienced, they sound thin, tinny, and hollow. And considering it costs thousands more, I think the Camry is laughable compared to the Sonata.
I wonder how much the rough ride issue has to do with tires. As a recent buyer of a 2008 Sonata, I too am a bit disappointed in the drivability, particularly on trenched roads. I blame most of that on the wide, low profile 60 series tires. There is no real place on a comfort sedan for performance tires that make the car pull, ride rough, and wear out prematurely. Has anyone looked at switching out to 15" wheels and narrower tires?
I've driven a 2010 Sonata and a 2009 Camry. I much prefer the way the Sonata drives. I like a firmer connection to the road than the floaty isolated Camry ride. To me, the Camry feels like you're driving a toaster - it's an appliance and nothing more. No personality. No connection.
It should be noted that my own car is a 2010 Ford Fusion, which I'm sure you'd all hate since it's even "rougher" than the Sonata. But I love it.
I don't know about what Camry you are talking! Mine is a 2002 LE and I can tell you that it is not the best car on the street when coming to road noise and smoothness... Actually, I test drove a used 2009 Hyundai Sonata V6 Limited and I am willing to change. I came here to check the reviews, but the "willing" is strong. I personally HATE my Camry a LOT!