I don't know actual numbers, but the lower priced S seemed to sell better than the SV or SL.
Just going by what I've read here, and seen in searching dealer stock, it appears to me that the best selling Leaf models are, in descending order:
SV with Premium Package
SL with premium Package
S with Charge Package
SV/SL without Premium
S without Charge Package.
Actual sales numbers will be different, because both the S, and the SV without Premium get discounted heavily, and sell, eventually, but the above is based on how fast models sell, not just on how many sell when the price is slashed. It is, admittedly, just an semi-educated guess, but I usually have a feel for these things. Anyway, based on the above, I think that many people want a combination of good price and good features, while many others look for one feature combined with lowest price. The latter would be the S with Charge Package. So if Nissan wants to compete on price, they should build the S with QC and 6.6kw charger, and 30kwh pack. If they want to compete on price and
features, a $36k SV with Premium and 60kwh pack should be a winner. If they can sell the loaded SL for much less than the Bolt Premiere, that too should work.
2013 "Brilliant Silver" SV with Premium and no QC, a 2009 Vectrix VX-1 W/18 Leaf modules, and 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.