I have a 2007 xk with 35000 miles.. fairly new Dunlap Sport tires.

Complaint. ... Sounds to me like a drive shaft noise (universal joint). speed 35-75 mph...above 80 no objectionable noise

I have taken to two local Jaguar Dealers.. one said it is a resonance noise
that is common with the xk.. second dealer said it is tire noise from the Dunlap tires.

Suggestions? Love my car .. just don't like this noise.
I know that the tires flat spot .. after 5-10 miles flat spot is gone.