We want to sell our MS 40kw. Yes, it has the 60kw battery and they will upgrade over the phone. Has 6500 miles, bought new in May. P09920 according to App, Black on Tan Leather interior; Tech package, leather interior, and rear facing seats. Since there were so few 40's sold, hope to move this by Thanksgiving. No problems with car, just doesn't fit our lifestyle. Have to say, its surprisingly big inside, like an S-Class Merc, pretty cool. Sale price is $60's and not so crazy since you can't get a new one for less than $80's, but with better range; trade off there admittedly. Car is great and stands out even here among supercar owner Hedge Fund Masters of the Universe!!!!!