I have a 2011 Mondeo titanium 2.0 with 18" wheels, spoiler and sub woofer in the spare wheel well as extra options. I have owned it from new (December 2010). I damaged the F.O.S wheel on a kerb and had the wheel replaced by ford. I have a vibration coming through the car and can feel it through the driver and passenger seats from about 45 MPH. Ford have replaced the drive shaft, done a 4 wheel alignment, balanced all the wheels. It has been run with 17" wheels and there was a slight improvement. Ford cannot get to the bottom of the problem. Has anyone else suffered the same problem? or any ideas?