The racers' average speeds were significantly cut by lowering the start gate to the one usually reserved for the women's competition.
And not all the racers are du Ponts or multimillionaire trial lawyers.
Eight personnel were despatched up the hill to trace the racers.
During the four-week expedition the racers will drag sledges - known as pulks - weighing more than 150lb (68kg) and face extreme temperatures as low as -45C, along with savage 50mph winds.
"We certainly regret that the system failure affected tonight's event, we apologize to the racers whose cars were damaged, and our immediate concern is for the race fans, " Fox said in the statement.
Once printed, the racers are pretty solid.
ENGADGET: MakerBot's Turtle Shell Racers cruise around our offices (video)
"Police patrol the area quite regularly and order the boy racers out of the area, but as soon as the police disappear the drivers come back - it becomes a game to them, " said Mr Thomas.
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The best racers know they can push their car to the limit because the guys in the pits are keeping it in perfect shape.
While raising awareness, the race lets companies, schools and celebrities pay to sponsor one of the reptilian racers.
MakerBot isn't actually selling the Turtle Shell Racers, so much as the components here.
ENGADGET: MakerBot's Turtle Shell Racers cruise around our offices (video)
The course leads racers on a track over the cathedral's steps, to a bridge crossing a main thoroughfare.
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He grew up riding dirt bikes in Pennsylvania before developing a love for the lightweight vintage racers he rode through places like Europe, Nepal and the American Southwest.
All in all, the Turtle Shell Racers are a pretty great experience -- one certainly recommended for anyone with a 3D printer lying around.
ENGADGET: MakerBot's Turtle Shell Racers cruise around our offices (video)
One of the great American racers of all time, a Tour de France stage winner and Olympian, Davis's day is often met by frustrating physical challenges.
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For experienced recreational athletes and racers the appeal is tackling the next level of challenge, while for everyone it is a badge of honor to finish.
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Ten years ago the only large yachts capable of such speeds were Whitbread round-the-world racers crewed by 12 burly sailors and even then only while surfing down a giant wave in a gale.
The home stretch sends racers up an 11-foot hill and then down into the "Dutch mountains, " four moguls just before the finish line.
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During time trials this week to narrow the U.S. field of 101 to 64, many racers returned to the athletes' tent wounded and winded.
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We're used to seeing the likes of British wheelchair racers David "Weirwolf" Weir and Shelly Woods in the much-loved road race but this year more disabled athletes - who aren't in chairs - are joining the throng.
The most common security hazards are "bandit" runners who jump on the course without registering - or racers who take shortcuts, and for the most part, mass violence at sporting events is exceptionally rare across the world.
Custom-builts approach the power and speed of racers, but, as one-of-a-kinds, they also reflect the distinctiveness and eccentricities of the builder and the owner.
Lucie, Florida, orthopedic surgeon who's been a dirt-track racing fan since he watched his father drive midget racers in the 1950s.
Lucie, Fla. orthopedic surgeon who's been a dirt-track racing fan since he watched his father drive midget racers in the 1950s.
Finnegan was one of the very best road racers of his generation, one of that 'special breed' and a hero to many.
Police in the Borders are investigating the possibility that boy racers may have been behind a spate of thefts and attempted thefts of Nitrous Oxide.
There's a 90-degree turn that sends many racers crashing into the wood walls and they barrel down toward a 16-foot-high banked U-turn that puts racers nearly horizontal.
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He said that he was initially down after the accident but that the experience of other racers who had come back to compete after more serious injuries was an inspiration.
Racers follow the stream -- jumping off small cliffs and through waterfalls -- and a final rock face at the base creates one of the last challenges, requiring concentration and crab-walking to climb down.
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