Dyson has announced plans for a further £120m investment in Wiltshire, which would bring a 10-mile track to the electric car testing ground at Hullavington.
The company bought the 517-acre disused airfield a few years ago and has already renovated two hangars at a cost of £84m. The next phase of the site's development would take Dyson's total investment to £200m.
Sir James Dyson has not revealed much about his electric car concept, which is being developed at the site, but has pledged to spend billions on its development and suggested the model, which is due out in 2020, will be 'radically different' to anything else on the market.
Jim Rowan, chief executive of Dyson, predicted that Hullavington would soon become a 'world-class vehicle testing campus'.
'We are now firmly focused on the next stage of our automotive project strengthening our credentials as a global research and development organisation,' he said.
Around 400 automotive staff now work at Hullavington and a further three buildings will open in the coming months, offering an additional 15,000 sq m of testing space, the BBC reported.
Image from Dyson. An impression of Dyson's electric car test track at Hullavington in Wiltshire.
