I'll try to super-simplify it:
2011-2012 Leaf: poor heater, slow onboard charger in all cars.
2013-2015 Leaf: heatpump in all but the S, faster onboard charger in all but the S without Charge Package. The S has resistance heat only for all years, but it's a better heater than the Gen 1.0 cars. (2013 Leafs built before April of that year have the older, fast-degrading battery.)
In 2016 all the SV and SL cars have the 30kwh pack, while the S got the same pack about August.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.
The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.