I forget exactly where I read this, but Spartansburg builds many (if not all) of the 3.0d X5's that are exported to the rest of the world. If this is true, many the distribution channel is up and ready to go.

But to X5Sport's point, the lack of an ultra low sulfur fuel is one of the hold ups, but it's supposedly on the way. ULSD is supposed to be available at retail gas pumps on Sept 1. Expected premium is 6-7 cents more than conventional diesel. Most, if not all, of the gas retailers have a product developed and ready to go.

The question is when will BMW have these engines ready to meet U.S. emissions compliance? U.S. smog regulations are more stringent than Euro regulations. And the improved fuel economy should help BMW's CAFE ratings. So it's a no-brainer to sell diesels here in the US. But why has there been such little noise by BWM regarding future U.S. diesel models?