My brand new (picked it up Saturday) Chevy Colorado has a vibration problem. Felt like either bad front end problem or out of balance wheels. I dropped it off at the dealership this morning.
They are claiming that the tires themselves are out of round. These of course are the more expensive optional chrome rims with different tires.
They are ordering in new tires for me, but I'll have to live with it until Thursday when they will be able to replace three of the tires. The fourth will get here in a couple weeks. Gah! I guess I get to go bouncy, bouncy, bouncy, for a few days.