Considering the large amount of money you are paying for a Tesla Model S, get the 85 KWH battery instead of the 60 KWH battery. It is only $10,000 more base price. Also, the 85 KWH Tesla Model S comes with a couple of options standard that the 60 KWH Tesla doesn't have. One, you get the Michelin 19 inch tires that give you an extra 3% driving range, a total of 8 extra miles, on the 85 KWH Tesla. This is a $1,000 extra option on the 60 KWH Tesla. Also, the 85 KWH Tesla comes standard with the supercharger plug, if you want to avail yourself of Tesla or other DC fast chargers, especially on long road trips. This is a $2,000 option on the 60 KWH model. When you add these two options onto the 60kwh Tesla Model S, that is a total difference of only $7,000 between the two models on a car you are paying a lot for to begin with. When you add in the 3% extra miles Michelin tires, you get an EPA range of 273 miles in the 85 KWH Tesla Model S, versus 214 miles for the 60 KWH Model S. For an extra $7,000 in price, you get an extra 59 miles in total range. That is a lot of extra range, worth it in my opinion for only an extra $7,000, considering you are paying a lot of money for the car to begin with. Less than 30% of Tesla Model S cars are ordered with the 60 KWH battery, I have read. The large mileage difference, and minimal difference in cost, seems to be why most people opt for the 85 KWH Tesla Model S instead of the 60 KWH model S. I am not a Tesla owner presently, but I am looking into the possibility of one day becoming one, once I can afford it. The above information is based on my research of the Tesla Model S internet sales site. Also, the 85 KWH Tesla Model S has a better battery warranty, 8 years unlimited miles versus 8 years 125,000 miles for the 60 KWH Model S. Also, the 85 KWH Model S is a faster car, with more horsepower and more torque than the 60 KWH Model S. You will also obtain a higher resale value with the 85 KWH Model S versus the 60 KWH Model S, all other options being equal. All the other options are the same price, regardless of which battery Model S you choose. In summary, the 85 KWH Tesla Model S is a much better value than the 60 KWH Model S, all things considered, for only an extra $7,000.