I have a 2006 Range Rover Full Size Supercharged. On Friday, my wife calls me and says her vehicle dies while she was driving it. When I arrive, I put the key in, start it and it runs fine for about 20 seconds, then it slowly bogs out and dies. I tried this numerous times,. and it runs for different periods of time before dying. Has anyone every experienced this problem, or know what may be wrong?? Im in desperate need of help!!