I agree 100%. I drove the X5 diesel during an event in the BMW factory and the 4.8 is a far superior than the diesel in almost all situations. The only reason to buy the diesel is fuel savings

That's why I'm going to purchase one if they ever let us know when the new I drive will be available. Diesel here is .46 per gallon more than BP premium.
The only thing I can think of, BMW had some of the old I drives left over and decided to put them in to get rid of them for cost savings.

Craig