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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:

Aston Martin working on a limited-edition DBR1-inspired speedster?

The Supercar Blog has heard from its supercar-privy sources that Aston Martin might be working on a new speedster. The putative roofless model could be inspired by the most important and most valuable racer in Aston Martin's history, the DBR1 that took overall honors at the 24 Hours of Le Mans in 1959. Thought to be limited to just 88 units, TSB said the carmaker might have held a VIP preview event during Monterey Car Week last month. If the English luxury maker is developing such a model, we can probably declare the speedster era officially open for business after the limited-edition Ferrari SP1 and SP2 Monzas, Porsche 911 Speedster, and the Ultimate Series speedster that McLaren recently admitted is on the way. As with the Aston Martin, all of the other high-bucks open-sky models take inspiration from racers of yesteryear.  Furthermore, if Aston Martin really has such plans, the carmaker would be re-opening a six-year-old chapter in company history. In 2013, Aston Martin unveiled the CC100 Speedster (pictured) at the 2013 Nurburgring 24-Hour race, created in just six months to celebrate the 100-year anniversary of Lionel Martin and Robert Bamford deciding to build vehicles together. The CC100 was built on the VH platform utilized by the brand's production cars, and used a 6.0-liter V12 with 565 horsepower to do 0-60 mph in four seconds and reach a top speed of 180 mph. The carmaker built two of them, sold to collectors very close to the brand. Today's DBS Superleggera platform and its 5.2-liter, 715-hp V12 could make a suitable base, and who knows, Aston Martin — unlike Ferrari or McLaren — could go all the way and swap the DBS' eight-speed automatic for a manual transmission. Another site said the speedster impetus comes from "the high interest demonstrated by multiple collectors." No one has any insight on the symbolism of 88 units, though. Aston Martin did release a series of Dragon 88 models in 2012 for the Asian market, named for the auspicious omens associated with the number 8 in Chinese culture, and the Interush International team entered a #88 Vantage GT3 race car in the 2015 GT Asia Series, but that seems a gossamer thin connection. The Aston Martin One-77, after all, had a lot of sevens in its spec sheet, but was half named for its production volume. If there is a vintage-themed speedster on the way, we'll know more when Aston Martin decides to admit it.

Aston Martin updates Vanquish, Rapide S for 2015 [w/videos]

For such a small company, Aston Martin certainly keeps busy. Having already previewed its new V12 Vantage S Roadster ahead of its Pebble Beach unveiling, the British marque recently confirmed the arrival of a new Lagonda super sedan. But now it's turning its attention to its two flagship production models with a series of upgrades. The enhancements to the 2015 Vanquish (both coupe and Volante convertible) and Rapide S sedan center around the inclusion of the new Touchtronic III eight-speed automatic gearbox that brings with it enhanced performance, efficiency and comfort. Along with reprogrammed Bosch electronics, the new transmission and updates net a 3-horsepower boost in Vanquish (bringing output up to 568 hp) and 2-hp boost in Rapide S to 552. Torque rises to 465 pound-feet in both, along with revised stability control and steering systems. Upgraded dampers on the Vanquish are 15-percent stiffer up front and 35-percent firmer in the rear, while the Rapide S gets larger front brakes. The result of this suite of minor updates results in a rather substantial performance boost. According to Aston, the upfittings cut a good half-second off the 0-60 sprint for both models: the Vanquish drops from 4.1 seconds to 3.6, and the Rapide S from 4.7 seconds to 4.2. Additional visual enhancements to differentiate the new models are limited to new wheels, paint options and interior trim, the details of which you can scope out in the press release and pair of videos below. DYNAMIC ENHANCEMENTS FOR ASTON MARTIN VANQUISH AND RAPIDE S - Acceleration, top speed, emissions and economy improve significantly - Debut of state-of-the-art eight-speed Touchtronic III automatic gearbox - New engine management system, enhanced trim and specification options 6 August 2014 - Aston Martin is today revealing details of a raft of important enhancements to two of the brand's most popular and successful sports cars: the Vanquish ultimate GT and Rapide S four-door, four-seat, sports car. With the arrival of 15 Model Year (15MY) cars in markets around the world over the next few months, the luxury British brand is offering not only considerably enhanced performance and much-improved fuel economy and emissions, but also an even more honed, precise and responsive driving experience.