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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:

Of course the Aston Martin AM37 speedboat is fast and beautiful

We told you last week about the new Porsche-designed 115-foot yacht. On a slightly smaller scale in terms of LOA — but on at least the same scale of opulence — is the Aston Martin AM37 speedboat that debuted this week at the Monaco Boat Show. The 37-footer (hence the name) has been in R&D for two years. Designed by Aston Chief Creative Officer Marek Reichman working with with naval architect Mulder Design and Dutch shipbuilder Quitessence Yachts, it promises bespoke design with state-of-the-art marine technology. It's designed to carry six passengers and two crew members, and each interior is custom outfitted. Reichman used the same "golden ratio" employed in all kinds of art and architecture — and in the design of Aston Martin cars. A single piece of curved glass wraps around the cockpit, and the decks are natural teak. The boat on display in Monaco was outfitted with cream-colored leather. The electrically controlled cockpit cover can be deployed from the lucky owner's Apple Watch. Forbes magazine has more photos of that particular boat, and reports that Aston plans to build just 10 of these per year. The AM37 costs $1.6 million. So maybe you can get one to serve as a tender to your $16.7 million Porsche yacht. Related Video:

Aston Martin Vantage F1 Edition adds more power, downforce

Well, it seems we were onto something, Aston Martin really did give us a pace car edition of the Vantage. Or, in F1 parlance, a safety car edition. It's technically called the Aston Martin Vantage F1 Edition, and fortunately, it's not just a Vantage with a fancy paint job. It actually boasts several performance improvements that it shares with the real safety car. You can even see some of those upgrades. The car features a front splitter and canards, rear wing, and under body tweaks. They all allow the F1 Edition to make an additional 441 pounds of downforce at top speed over a standard Vantage. Though not majorly affecting performance, the Vantage F1 Edition also receives a slatted grille, carbon fiber accents, quad-tip exhaust, exclusive 21-inch wheels, and a matte dark grey stripe. Only three colors are available, Aston Martin Racing Green, black and white, all three of which can be matte or gloss. Inside, the car gets black leather and grey Alcantara with your choice of green, black, grey or red stitching and center stripe. The F1 Edition gets extra power, too. The twin-turbo 4.0-liter AMG V8 makes 527 horsepower, an increase of 24, though torque is unchanged at 505 pound-feet. An eight-speed automatic is the only transmission available, and Aston Martin says it has been retuned to shift faster. Acceleration and top speed don't change, with 0 to 60 happening in 3.5 seconds for the coupe and 3.6 seconds for the roadster. The coupe's top speed is 195 mph and the roadster's is 190. Besides the extra grunt, the F1 Edition gets stiffer springs and retuned shocks along with a steering rack that Aston says provides better feedback. To pick up one of these upgraded Vantages, you'll need $162,000 for the coupe. Pricing hasn't been given for the roadster, but it will likely cost a bit more. Aston is taking orders now, and cars will be delivered to customers and dealers starting in late summer this year. Related Video: Aston Martin DBX in Stirling Green | On road, off-road and on the track