It looks more racecar than road car, but the street-legal Opel Astra OPC Extreme is set for a low-volume production run.

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Debuting at next week’s Geneva motor show, the Astra OPC Extreme claims the title of the fastest front-wheel-drive Opel in history. Unsurprisingly, it’s also the fastest car to ever wear the Astra badge.

Opel hasn’t released performance figures at this stage, but the Extreme is set to make light work of the regular Astra OPC’s 6.0-second 0-100km/h benchmark and 250km/h top speed.

Supporting its claims is its uprated 2.0-litre four-cylinder turbocharged petrol engine, which has been tuned to produce “over 300hp” (224kW plus), and an extensive weight-saving program that makes the Extreme 100kg lighter than the standard OPC.

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Lightweight carbonfibre replaces conventional materials for the front spoiler, bonnet, roof, rear wing, diffuser, engine cover, suspension cross-bracing, rear wheelhouse ventilation, and the wheels.

The carbon wheels are 20kg lighter than their aluminium counterparts, while Opel claims the 6.7kg-lighter roof lowers the Astra OPC Extreme’s centre of gravity significantly, which it says contributes to improved agility and handling.

High-performance 19-inch 245/35-aspect Hankook tyres have been specially developed for the OPC Extreme, while Brembo brakes with six-piston calipers and 370mm discs up front give it unprecedented stopping power.

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A safety roll bar replaces the rear seats, while the standard front seats make way for Recaro buckets with six-point harnesses. Before the driver sits a new carbonfibre-reinforced suede-covered steering wheel. Contrast yellow stitching across the seats, wheel, and six-speed manual’s gearlever gaiter rounds out the Extreme’s racy enhancements.

The Opel Astra OPC Extreme will debut publically in Geneva on March 4.

Click the Photos tab for more images of the Opel Astra OPC Extreme.