Hales says the Porsche suffered a mechanical fault while lapping that allowed it to slip out of gear and over-rev. Piper wasn't convinced, and sought to have the repair paid for by the guy who broke the racer, saying "If you bend it, you mend it." It's not like Hales is a novice driver, having seat time in both professional and amateur races over 30 years, notching about 150 wins, but even the best drivers sometimes miss a shift, and that's what Piper contended happened to his car.
According to reports, Hales has had to sell most of his valuables to pay his lawyers and is now facing bankruptcy with the ruling against him. Members of the Pistonheads website are trying to coordinate a collection to help him out, as well.
UPDATE: Images of David Piper's actual 1970 Porsche 917 added thanks to Autoblog reader Bill Ibsen of Porsche Club of America. Thanks, Bill!