My local dealer (who has my order for a 2.0D, 180ps R-Sport Auto) still insists that he will get demonstrators in late April. I have asked him several times to confirm that the actual date will be May, but his response is that he hasn't heard anything from Jaguar. However, information from another dealer confirms that the date will be later in May.
I would much rather he came clean and gave me the latest information. I remember the delays on the XJ and would rather have a reliable car than one I have to keep taking back to the dealer. Even if it's only for software updates.