Error on my calcs.Williams GP Holdings which includes Williams Hybrid Power is worth around €250 million.
"So you'd need 2.65m euros, roughly, to buy 1%, which I appreciate is a lot of money for most of us", Mr Parr said.
"In addition, Williams is developing new businesses, such as Williams Hybrid Power, to exploit our engineering expertise and our brand, and we intend and expect this to provide new sources of revenue and profits."