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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:

Henrik Fisker presents 'Thunderbolt,' a take on the Aston V12 Vanquish

Henrik Fisker's name no longer even appears on the vehicles from his former brand, but since leaving the company, the man is slowly transitioning back into what made him famous in the first place: design. Fisker has already put pen to paper for a concept motorcycle and a carbon-fiber-bodied Ford Mustang. For his latest project, Fisker has made his unofficial return to Aston Martin to create a one-take on the Vanquish called the Thunderbolt. Debuting its carbon fiber skin at the 2015 Amelia Island Concours d'Elegance, Fisker keeps his transformation of the Vanquish far more subdued than his recent work on the Mustang. He enlarges the grille to take up the entire front end but retains Aston Martin's traditional shape, and the hood receives a power dome with triangular air intakes on each side. In profile, this is still clearly an Aston just sharper and leaner. It's also lowered 0.6 inches and rides on 21-inch wheels. A big change comes at the back where Fisker adds wraparound rear glass and transforms the taillights into thin strips of LEDs. The interior offers a mix of high-end leather and more carbon fiber, plus an 11.6-inch Curved Control Screen from Panasonic. Unfortunately, even if you have the means and want to buy this Thunderbolt, it's not for sale. However, Galpin Aston Martin is taking limited orders for a tweaked version with a revised front end that includes different intakes on either side of the grille and without the Panasonic infotainment screen. As designer for the Aston Martin DB9 and V8 Vantage, the Thunderbolt can be thought of as Fisker's return to the British brand, albeit in an unofficial and extremely limited way. Still, it's fascinating to get a glimpse at what the marque's models might look like, if he were still there. Related Video: HENRIK FISKER UNVEILS HIS LATEST DESIGN STUDY, A TIMELESS GT COUPE, AT 2015 AMELIA ISLAND CONCOURS D'ELEGANCE One-Off V12 Vanquish-Based Coupe Features Carbon Fiber Coach-Work and World's First Panasonic Curved Screen Infotainment System Amelia Island, Florida (March 14, 2015) – Henrik Fisker today took the wraps off of his latest design study, the "Thunderbolt," at the 2015 Amelia Island Concours d'Elegance. Designed by Henrik Fisker as a powerful GT coupe; this is his personal interpretation of how his Aston Martin V12 Vanquish coupe could look like.

More V12 power, no turbos | 2017 Aston Martin Vanquish S First Drive

Like the last days of the dinosaurs, Aston Martin's $294,950 Vanquish S is one of a handful of extant Tyrannosaurus Rex – few big-capacity naturally aspirated engines still bellow rage at the world in general. So, six liters, twelve cylinders, 48 valves, and no turbos; hurrah. Well, as long as you're not buying the gas. As the delivery driver who brought this car to me observed: "Whatever I seem to do with this car, it never gives more than 14.5 mpg, where as long as you barely touch the throttle, the new DB11 gives you about 18." Aston's DB11, which debuted this year with a fresh chassis/powertrain architecture that will eventually underpin a new car with the Vanquish nameplate, is twin-turbocharged. The Vanquish S, with its extra power, is decidedly not. It's the off-duty moments that stymie gas mileage for naturally aspirated mills like the one in this car. Dragging that huge crank, con rods, pistons, and cams around plays havoc on economy when you aren't on it like jam on toast. At full throttle, there's not a lot in it, turbo or no turbo. The Vanquish is the most unlikely car ever to have almost not made it into production. The name was first used in 2001 attached to Ian Callum's toothsome aluminum/carbon composite coupe body, but then chief executive Uli Bez held it back for six months, officially because he didn't like the Ford Ka air vents. Unofficially, as he later admitted: "What no one wanted to hear at the time is that Vanquish was crap. I changed 200 things, and even then, it burned through gearboxes." At the heart of the Vanquish then and now is a V12 engine, effectively built out of two Ford Mondeo Cleveland V6 units. It's easy to scoff at such humble beginnings, but the rumor machine elicits Porsche and Cosworth involvement in its gestation. First introduced in the 1999 DB7 V12 Vantage, the engine was then tuned to 460 horsepower for the 2001 Vanquish, which also debuted Aston's bonded-and-riveted VH platform chassis. Over 2,500 of these amazing cars were sold in standard and (from 2004) S forms, though its robotized manual transmission was problematic.