The production version of the most powerful model in the new Astra GTC range will be officially marketed as the Opel Astra OPC in mainland Europe and as the Vauxhall Astra VXR in Britain.

Power is derived from a new 2.0 litre turbocharged direct injection four-cylinder engine capable of 280 hp and 400Nm of torque. These are channeled to the front wheels via a 6 speed manual gearbox and a specially developed mechanical limited slip differential. These numbers bring the flagship Astra GTC straight into the Scirocco R turf, which pumps out 256 hp and 330Nm of torque. GM's European division said that the Astra OPC / Astra VXR can reach a top speed of 250km/h but did not specify the century sprint time.

Like the Astra GTC, the OPC uses the HiPerStrut front suspension with adjustable dampers, steering and throttle - thanks to the FlexRide control system. But the top-of-the-line Astra model adds a limited-slip front differential to help control all that turbo torque. Brembo brakes, exclusive front and rear fascias, dual exhaust, performance seats, a special steering wheel and new instrumentation round out the OPC package.

For more details and on-sale dates, we'll have to wait until early next year. The Opel Performance Center (OPC), which is responsible for the sporty accents in the Opel model line-up since 1999, is a decisive element in the brand's profile. It embodies a high level of emotionality and passion for striking design, top class technology and extraordinary driving dynamics.