Gentlemen,
With how new most of your cars are, I highly doubt it is anything other then the tires or wheels. Like I posted earlier, I had to have my front tires BALANCED ON THE CAR. I had zero vibration till I put new tires on my car. And they weren't cheap ones. I put Michelin Pilots on it. Then the vibration started. I took them off three times to have them balanced, road force balanced, check tires and wheels for roundness, etc. Every person said the last guy did them wrong. And every time they still vibrated. After they were done on the car, they are next to perfect.
Scott