A few years ago the thought of sending 295 lbs.-ft. of torque and 276 bhp just through the front pair of wheels would cause many a head to shake in disbelief.
Anyone who drove the 225 bhp Saab 9000 Carlsson will vividly recall the arm wrenching torque that was induced under harsh acceleration, a characteristic that was heightened with the merest suggestion of a damp road surface.
Well GM reckons it has got it cracked in the latest Astra VXR which employs a mechanical multi-plate limited slip differential for optimum traction.
The unit, derived from that used in the Corsa VXR Nürburgring Edition, is made by motorsport component manufacturer, Drexler. It creates its locking effect with a ramp angle of 45 degrees under acceleration and 90 degrees under deceleration. The overall effect is enhanced traction on-throttle, when it’s needed, and reduced lock-up off-throttle, when it’s not.
Does it work? I’ll tell you in a few weeks after I have sampled the car here in the UK.
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