Here's full audio from Tesla's recent press conference with CEO Elon Musk (media phone-in call) via YouTube Tesla Motor News in which Tesla announced a 90 kWh option, Ludicrous Mode and a cheaper base model.
As a quick recap, Tesla introduced 3 new options for the Model S:
Depending On The Model S Configuration, These Extra 5 kWh Brings The Total Range Of The Car To 300 Miles (driven at 65 mph avg)
* - New 90 kWh battery pack upgrade option for new customers (a cost of $3,000)
* - New base model introduced, the S 70, which is a single motor 70 kWh S, which retails for $5,000 cheaper than the 70D, starting from $70,000. (Of note: This is also roughly the same price than the outgoing S 60 which was discontinued in April and had a MSRP of $71,070)
* - New top-of-the-line performance P90D with "Ludicrous Mode" . Pricing increases by $10,000 for the "Ludicrous" feature (or $5,000 + install for current P85D owners over the next 6 months); this gives the sedan a 0 to 60 mph time-slip of 2.8 seconds. The new mode also brings up the quarter mile in 10.9 seconds.