 we leased a 2007 ford focus and returned it 2 weeks ago to purchase a 2009tord fusion. To our shock, we rec'd a bill from FMC stating we owe$600.00 for overuse of the perille tires.  We have always leased, and never have we rec'd a bill for anything.,called other ford motor dealers and they stated the perille tires are only warranted for 1 yr..why is FMC putting tires on cars that they know in advance will not hold up.,we turned the car inw/31,000 miles, perille tire is suppose to be good for 40.000 miles.  FMC is really shooting themselves in the foot because if we are forced to pay this, it will be the last ford we ever buy. what an insult to the consumer. tires were noisy & poor traction.