Whats happening at Pebble Beach?

Though hardly moving into Porsche levels of 50th Anniversary celebrations, Lamborghini is taking its own golden jubilee pretty seriously. The Italian company treated the world to a 50 Anniversario version of the Aventador LP720-4 earlier this year in Shanghai as well as a celebraotry Gallardo model. At this year's swanky show at The Quail during Pebble Beach weekend, Lamborghini is showing off the convertible version of the car, the very sultry Aventador LP 720-4 Roadster 50 Anniversario.

As the coupe version before it, the 50th Anniversary Aventador has been massaged to make a full-bodied 720 horsepower from its stunning 6.5-liter V12, as well as done up with special edition paint and badging. A subtlety redesigned front splitter will call out the limited run Aventador Roadster to those in the know, too. 

Porsche continues the long tease of its upcoming 918 Spyder; the latest instantiation here at the Pebble Beach Concours with the car presented in pre-production form to the throngs on the golf course.

Just a few days ago Porsche dropped an image of the car on its official Twitter feed. True to that leak, this 918 looks damn near what we expect the full customer version to be when it is officially debuted in Frankfurt. The neon-green brake calipers are items new to this version of the 918, and seem to be an identical color to those found on the Panamera S E-Hybrid.

When it shows up as a drivable piece, expect the Porsche supercar, with its gasoline-electric drivetrain, to be pretty insane. Horsepower in excess of 800 ponies will be available with a toe-tap, while the price of entry is expected to come within shouting distance of USD$850,000. A good deal for Porsche to bring the thing to Pebble then, where buyers with that kind of cash are think on the ground (and most likely wearing sherbet-colored trousers).