Vibration in steering wheel

Hello all. After researching class c moho,s for quite a while, I

found a 2011 Sunseeker 2860DS (30FT) with 29000 miles that I made

a deal on. It is on an E450 with a 202 inch wheelbase. I have read

much on the handling issues so I was apprehensive before the test

drive. Drove it on I 75 in construction, rain, and heavy traffic

and was it seemed to drive well. Passing trucks gave a gentle push

and the coach almost seemed to return on its own after trucks passed.

There was no wander or white knuckle issues. Actually I could

drive it one handed if I wanted. I kept speeds from 60 to 65.

Now here IS what I noticed and am not sure about. It had a

slight vibration in the steering wheel that to me felt like a

tire balance issue. (salesman noticed to). They said they would

look at it. The tires are like new Michelins (replaced on the

recall perhaps?) So bottom line, is a slight vibration normal

in an E450 or is it something that can / should be corrected?

I will add I have logged well over 20000 miles in fivers but

have no class c experience. Thanks