The MGR website is usually pretty good and keeping up-to-date with the latest offers. 0% finance does crop up from time to time but usually on a specific model and variant. I don't recall seeing the ZR160 mind you.
Also, I don't know if the promotion is still going, but back in February when I got my Zed there was one year's free insurance on all NEW ZRs (regardless of variant) but there is small print which, as one of the contributors to this thread found out to his cost, must be read.
Best advice on both is to talk to your local MGR dealer which, admittedly, may not sound appealing but keep at it and provided they are aware you are seriously interested, should buck up their ideas.