The Tesla Model S and Model X are already among the quickest vehicles on the planet, and now they just became even quicker. Company CEO Elon Musk announced a new 100 kwh battery pack option that gives us the new P100D Model S and Model X. Both feature more range, now over 300 miles, and quicker acceleration, down to 2.5 seconds in the 0-60 mph run for the Model S sedan.

The Buck LaCrosse is new for 2017 and it boasts remarkably polished manners, even on a curvy road. While it's not a BMW-rivaling sports sedan, it will impress with a new structure that's shed 300 pounds, a powerful V-6 engine, and loads of standards features.

The Aston Martin One-77 is a rare beast, and while you're unlikely to ever see one driving down the street, you now have the chance to actually own one. A barely driven example with only 1,118 miles on the clock is for sale with a price tag of $3.35 million.

You'll find these stories and more in today's car news, right here at Motor Authority:

Tesla unveils Model S P100D, proclaims it the fastest accelerating car you can buy

How Porsche gave the world more turbos, faster

2017 Buick LaCrosse preview

An Aston Martin One-77 can be yours, for $3.35 million

Lincoln, Honda, Toyota, BMW are tops in customer satisfaction (Acura, VW not so much)

New Kia Rio bound for 2016 Paris auto show

Is this Faraday Future's all-electric Tesla Model X fighter?

Airbus shows off an autonomous drone taxi concept

Former BBC Head admits letting Clarkson go was a mistake

2017 Porsche 911 Turbo first drive review