'Exceptional' new Astra, Astra GTC, Insignia and Corsa unveiled
Set to 'shake up the D-segment', the £23,349, SUV-inspired, all-purpose vehicle will undercut its crossover counterparts
Chairman and Managing Director Duncan Aldred claims the ambitious goal is an achievable one
Vehicle is the fastest car available for less than £30,000, hitting 0-60mph in 5.9seconds
Vehicle will be unveiled at the Frankfurt Motor Show in September
Economical flagship offers potential £1,000 BIK tax savings and £3,000 wholelife cost cuts