The GTC (Gran Turismo Compact) Geneve concept takes design cues from the VX220 and Vectra, and applies them to a three-door hatchback. Although the Astra will be more conventional when it finally appears, a spokesman said the dimensions and styling point to the future car.
Director of design Martin Smith added: 'With the GTC Geneve we want to demonstrate how sporty a three-door sports saloon can be. We set out to make a very dynamic-looking car with space for four passengers that is also immediately recognisable as a Vauxhall.'
The current – inherently conservative – Astra was the second best-selling fleet car in the UK in 2002, behind the more radical-looking Ford Focus, and will face stiff competition from the adventurously-styled new Renault Megane, suggesting the market is becoming more accepting to a less cautious approach.