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--> Article summary: Competitors
Aston Martin V8 VantageAston Martin unveiled one of the most eagerly anticipated convertibles at the 2006 Los Angeles Auto Show on Wednesday 29th November. Aston Martin Chairman and Chief Executive Officer, Dr Ulrich Bez said: "The V8 Vantage Roadster is a pure sports car, a car that heightens the senses and provides a dynamically thrilling driving experience." Developed from the outset alongside the V8 Vantage Coupe which was launched in 2005, the Roadster shares the unique-to-Aston Martin bonded aluminium VH (Vertical Horizontal) architecture – the backbone to all modern Aston Martins. Adding to this structure, sophisticated materials such as lightweight alloys, magnesium and advanced composites are used for the body, further contributing to the car’s low weight and high rigidity.  Aston Martin V8 Vantage The Vantage Roadster delivers exceptional performance with careful development and engineering ensuring that the Roadster equals the achievements of its Coupe sibling, with 0-100km/h (62mph) achieved in 5.0 seconds (0-60mph in 4.9 seconds) and a potential maximum speed of 280km/h (175mph). Vantage Roadster is available with two transmission alternatives from launch. Offered as standard is the fast-shifting, six-speed Graziano conventional stick-shift manual gearbox, with ratios perfectly matched to the performance of the V8 engine. This is joined by Aston Martin’s new Sportshift automated manual transmission – an ultra-quick system that provides the driver with heightened precision via fingertip control of gear changes using paddles to progress smoothly and swiftly through the ratios. Jaguar XKRUnveiled at the 2006 paris Motor Show, the Jaguar XKR takes the Jaguar experience to new heights. The new XK is designed, engineered and developed at the company’s Whitley Product Development Centre in Coventry. There, some of the most advanced facilities in the car industry - including computer-aided design, advanced engineering, vehicle component development, safety test centres and engine testing - are used to create world-class cars such as the X-TYPE, S-TYPE, XJ and of course XK. The supercharged 4.2-liter V8 under the XKR’s hood features twin air intakes and continuously variable valve timing-mated to what Jag claims is a “class-leading” six-speed automatic paddle-shift transmission-and cranks out 120 more horses than the normally aspirated version driving the standard XK, with an added 113 lb-ft of torque on tap. Jaguar claims it’s enough power to help propel the XKR coupe from 0 to 60 mph in only 4.9 seconds, just slightly longer (5.0 seconds) for the convertible.  Jaguar XKR Like the normally aspirated XK model, the new XKR makes intelligent use of practical, modern technology such as its industry-leading aluminium monocoque body structure. In addition, an uprated 420bhp (SAE) supercharged V8 engine and class-leading calibration of its state-of-the-art, six-speed automatic transmission bring it a level of accessible, real-world performance that makes the XKR the most impressive, everyday, sporting GT in its class.
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