Audi is the latest manufacturer to put Glass's Part Exchange Values on its www.audi.co.uk website as it bids to give potential customers a complete virtual showroom experience.

Glass's Part Exchange Values enable motorists to obtain an independent valuation for their current car in seconds. Part-exchange values are rated on the condition of the car and are graded excellent, average or poor.

The guide, which is already used by Peugeot, Vauxhall and Inchcape Motors, plus e-tailers like Autobytel and Car Source, “removes the uncertainty” from buying a car, according to Jane Bloore, Glass's director, Consumer Division.