It may seem a long time ago now, but here's a copy of the story that appeared in 'The Daily Telegraph' newspapaper back in 1996.
You'll have to scroll your screen sideways to read it, and the reproduction quality may not be that good, but it is a still a decent bit of history. After all, 1000 horsepower is still a 1000 horsepower, and not many engine builders can lay claim to those sort of figures even today, let alone be prepared to loan their handiwork to a member of the press to independently test.