For example, in the old days they might have spent three months coming up with a clay model.

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He was fiddling with a clay model of an early successor to the E-type when company founder Sir William Lyons walked by.

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Mr Doubleday has made a preliminary model of how the sculpture will look, and is now making a clay model using about two tonnes of clay supported by a steel structure.

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Even if they make a clay model, as opposed to doing it, say, in virtual reality, they do it with electronics that can cut the clay in a matter of hours, and if they have a change, they can blend, electronically, the two designs and come up with an all-new one and have another clay model ready overnight.

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When Mr. Brown exhibited his first clay model of the car to top management, he was greeted with a standing ovation.

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