Opel has announced the availability of its high performance SuperSport chassis in the Insignia mid-size line of driven by the front wheels. The SuperSport package includes GM’s HiperStrut (High Performance Strut) suspension setup, Brembo brakes, and an OPC (Opel Performance Center) tune; it was previously only available in the Insignia OPC as well as all Insignia variants with all-wheel drive, which are also equipped with traction and stability enhancing electronically controlled Limited Slip Differentials (e-LSD) to optimally distribute torque.
Now, the SuperSport chassis package can be ordered with the 2.0 CDTI diesel engine (118 kW/160 hp) as well as the 2.0 liter turbocharged gasoline engine (162 kW/220 hp). Together with the FlexRide system, which enables the driver to select from three different driving modes (Standard, Tour and Sport) to adapt the car’s damping, steering, and throttle parameters, the SuperSport chassis is a 2,930 euro option.
Most notably, HiperStrut was first used on the high performance Insignia OPC, where it significantly improved and evolved the traditional MacPherson strut front suspension. Following introduction in the Insignia OPC, HiperStrut became a standard feature in the Buick Regal GS and LaCrosse (Premium III and Touring trim levels) as well as the Opel Astra GTC and OPC. The setup reduces the kingpin inclination angle from 13 to 9 degrees, thereby shortening the spindle length by 23 mm (to 44 mm). This reduction allows the driver to more thoroughly exploit the power available in the Insignia by improving grip in wet or dry conditions as well as during high-intensity cornering maneuvers.
Reducing the kingpin angle results in a decrease in camber loss, which the front rolling stock (mostly the tires) to maintain increased contact with the road during cornering, resulting in the delay of understeer. In addition, the shortened spindle length considerably reduces torque steer reactions and improves resistance to steering kickback. For those wondering about the details of the Brembo brakes, they consist of 355 x 32 mm (14 x 1.25 inch) cross-drilled discs coupled with four-piston, high-strength aluminum calipers and high-performance brake pads.