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Aston Martin V12 Vantage S Roadster in the metal in Monterey

Even surrounded by glamorous people and a plethora of extremely exotic vehicles on the lawn of the Quail, the Aston Martin V12 Vantage S Roadster sticks out as something just a little bit more special. Under the Monterey sun all of the carbon fiber on the hood and in the air dam pops out from the shining ruby red paint. The aggressive looks are deserved though, because the latest roadster might be one of the most impressive droptop GTs ever to come out of Aston Martin. Under that louvered bonnet is a tuned version of Aston's long-lived 6.0-liter V12 – it's 44 pounds lighter, too. Plus, this engine is mated to the brand's latest Sportshift III seven-speed sequential gearbox to rocket it to 60 miles per hour in 3.9 seconds and on to a top speed of 201 miles per hour. Features like adaptive dampers, two-stage ABS and carbon-ceramic brakes, make the new V12 Vantage Roadster an even more intriguing and capable package. Of course, this Vantage is a head-turner even without those 12 cylinders ready to make a very sweet noise at the press of the throttle. Check it out from all angles in the gallery.

Cosworth briefly crows that Aston Valkyrie's 6.5L V12 has record horsepower

It's only natural that Cosworth would want the world to know that it's building the world's most powerful naturally-aspirated engine for the Aston Martin Valkyrie and Valkyrie AMR Pro. The timing of when the world should know about it, that's at issue. Yesterday the English engine maker's official Twitter account posted a picture of the barely-there coupe and the line, "We're famous for breaking records and our latest engine, the Aston Martin Valkyrie 6.5-litre V12, will be the world's most powerful naturally aspirated road engine with 1,130bhp." Two tags accompanied the post, #Cosworth and #AstonMartinValkyrie. About 90 minutes later, the tweet disappeared. The likely issue is that Cosworth got ahead of Aston Martin's official confirmation of Valkyrie outputs, something we're more used to from patent offices and Chinese model makers. The question is what output is Cosworth really talking about, and which car. All of last year, however, various reports had the street-legal Valkyrie making 1,130 hp. A Road & Track report attributed "nearly 1,000 hp" coming from the NA V12, the remaining 130 from a kinetic energy recovery system working the front axle. Hence, we're not sure if Cosworth's talking about its own engine alone at 1,130 hp, or its engine with the KERS. But then there's this: At the launch of the Valkyrie AMR Pro during the Geneva Motor Show this year, Aston Martin said the track-only Valkyrie AMR Pro would enjoy "a combined power output of more than 1100 bhp — more than the Valkyrie road car and a figure than comfortably exceeds the magic 1:1 power-to-weight ratio." The truth's a mystery for now, which is just as Aston Martin would want it. If Cosworth's engine really does make 1,130 hp on its own, that would be monstrous, and it would mean the automaker's been playing a serious game of English understatement. Even if Cosworth included the hybrid help, however, an NA V12 with 1,000 ponies would take the crown. The only competition is the 6.5-liter V12 in the Ferrari 812 Superfast, and that's 211 horses adrift. The quad-digit figures expected from Mercedes-AMG Project One and McLaren Speedtail require turbochargers, as does the just-teased V8 going into the Shelby Tuatara. With the first of 150 Valkyrie road car deliveries scheduled for next year, we probably don't have that much longer to wait to find out. Related Video:

Aston Martin V12 Speedster will ditch roof and windshield

If your hunger for supercars with no windshields wasn't satiated with the McLaren Elva, we have good news. Aston Martin has one of its own to be revealed later this year. It's simply called the Aston Martin V12 Speedster, and sounds like it will be entertaining. Though the car hasn't been fully revealed, the teaser image gives us a good look at the profile. The nose is pointy with a huge grille like the Aston Martin Vantage. The short deck with tall rear spoiler is also Vantage-esque. Between the wheels appear to be some very aggressive air vents and character lines. And of course, there's no roof or windshield. There are cowls behind the seats, which are fitting since Aston says this car is inspired by the Le Mans-winning 1959 DBR1 race car and the 2013 Aston Martin CC100 concept car, both open sports cars. Powering the V12 Speedster is, obviously, a V12 engine. It's a version of the twin-turbocharged 5.2-liter that's been used in different versions of the DB11. In the Speedster it will produce 690 horsepower and 516 pound-feet of torque, which is less than the 715 horsepower and 664 pound-feet of torque in the monster DBS Superleggera. The engine is matched to an eight-speed ZF automatic transmission and rear-wheel drive. Only 88 V12 Speedsters will be built, and Aston is taking orders now. Completed cars will be delivered in early 2021. Pricing hasn't been announced, but we doubt that will be an issue for those ordering one. Related Video: