Nissan had a big media event in Japan back in October when they started production of what were to be "customer cars" of the LEAF model. Check the internet around 11 October for that "event."
Now IF Nissan started production around 11 October, they have had over 60 WORKING DAYS of production on the LEAF assembly line, and we now read directly from NISSAN JAPAN that they have only delivered 60 cars worldwide! That means they have gotten less than ONE CAR PER DAY off that production line.
Anybody really want to think about that for at least 60 seconds of reflection? There is no production line in the world, and certainly none in Japan that produces only 1 product/day. Typical ramp up production schedules might be 10-20 cars a DAY, but certainly not 1 car/day.
In a month less production time (around 14 November), GM has produced over 1000 of the Volt models, and it can be easily argued that the Volt is a MUCH MORE COMPLEX vehicle with dual drive systems, than the LEAF.
Nissan, IMHO, did not fully test actual "production version" LEAF models prior to attempting to start real production, and I believe they found a serious design issue which they have had to correct, by retrofitting early produced cars on the docks here before final delivery and by perhaps even STOPPING the production line there in Japan until new parts arrive. GM did MUCH, MUCH more actual field testing of the Volt with up to 300+ near final production cars rolling around in test fleets for cumulatively millions of actual miles of pre-testing. I have been VERY closely following both car rollouts, since I am getting both cars (LEAF ordered on 31 Aug and now scheduled for February delivery and Volt ordered on 5 Aug. and now sitting in my garage on the free Coulomb chargepoint which I plan to use on both cars WHEN my LEAF finally does arrive). It was patently clear that GM had maybe 5X the number of test cars in extensive driving over the last year compared to Nissan with the LEAF. The Volt rollout has been super smooth and the only early delay was the tardiness of the DOE in getting the window sticker finalized (as GM had maybe 500 cars sitting on the factory holding lot waiting for that sticker which is required before any car can ship).