[Rob]

The high-performance Biturbo diesel variant of the new Vauxhall Astra has been spotted testing for the first time ahead of its planned introduction early in 2016.

The Astra Biturbo, which was announced alongside the new-generation hatchback in September, features a more powerful version of Vauxhall's 1.6-litre 'whisper' diesel engine, producing 158bhp.

More here: http://www.autocar.co.uk/car-news/new-cars/2016-vauxhall-astra-biturbo-spotted