4104 or 4106 Sighted on I-435 Northbound 1 July?

[gus]

Just to the East of Kansas City near the airport. That was one pretty bus. I just got a glimpse of it so couldn't tell for sure except that it was a GMC. Yellow and brown (or black).

I was so surprised to see it I didn't have time to check it out, I think it is the first one I've seen on the road in the five years we've had our 4104!