Just want to correct RooleyMoor:
The Jaguar XF is not based on a new Mondeo, it is based on the original S-Type (but with significant modifications to body, chassis, interior, powertrain etc etc).
Also, the Jaguar X-Type shares a floorpan and some chassis components with the Mondeo, but is essentially a very different car ( 4 wheel drive vs 2 wheel drive for one (yes, I do know that lower powered X-Types are front wheel drive and share more components with Mondeo's).
There is a general misconception that if cars are based on each other, they will share the same or very similar driving characteristics. This is generally the area that is tuned out using engine, transmission, chassis calibrations to make different cars feel very different. Most people would be amazed at the difference in the feel of the car that can be achieved by different damper / spring / tyre tunes and engine tunes.