I rented a 120d over in the UK for a couple weeks and I thought the old 2.0 diesel was somewhat agricultural compared to other modern diesels I've driven with similar displacement. Specifically, it seemed to have very heavy flywheel effect and was very slow revving. The specs you quoted for the new 2.0 diesel look pretty impressive though. Unfortunately, the X3 is out of consideration for me. The entry price for the X3 diesel will probably be close to $50k and when equipped to my liking it will probably be pushing $60k. I can't justify that kind of indulgence given where my retirement savings is at. Now, if I could get that engine in the X1 and keep it around $45k out the door, I might have been tempted.
But it looks like I'm out of the running for the CX-5 diesel, or any upcoming diesel for that matter. I got rear-ended in a multi-car pileup in late Nov and my insurance wanted to total my Subaru and give me a check for $2k. I wanted to continue driving it, but they insisted on a safety inspection and it didn't pass. I held them off for a while, but they're going to drop coverage and I need another car now.