Thanks to a new 100 kWh battery, Tesla's Model S P100D with "Ludicrous" mode can accelerate from 0-60 mph in a time of just 2.5 seconds, trailing just the LaFerrari and the Porsche 918 Spyder. However, since those million-dollar two-seaters can no longer be bought new, that makes the Model S the quickest car on the market today. Adding to the superlatives, the new battery also increases the range to 315 miles, making it the longest range on a production electric vehicle by far. The larger battery pack is also available on the Model X, which now sprints from 0-60 mph in 2.9 seconds and travels up to 289 miles on a full charge. The Model S P100D will start at $134,500, and the Model X 100D will start at $135,500. In a bit of good news for Model S and Model X P90D owners, they can upgrade their battery packs for $20,000.