I noticed this pretty badly on one car i test drove that only had 50k kms, and the one i ended up buying with 70k kms has a very slight version of the sane thing. Notice it more coming fast into a right hand on ramp and on the brakes, although it's not brake related. It's a light shudder that you feel through the steering wheel.

Hoping it's just the tires which are getting replaced soon. Could be tie rods or worse ball joints. Anyone else experience a problem like this with the newer S60 models?