James Courtney drives the #22 Holden Racing Team Holden during practice for the Austin 400, which is round five of the V8 Supercar Championship Series at Circuit of The Americas on May 17, 2013 in Austin, Texas.

Abu Dhabi Racing's Emirati driver Mohammed al-Sahlawi veers off a cliff during the first stage of the Jordan Rally, round three of the FIA Middle East Rally Championship, in Sweimeh near the Dead Sea on May 10, 2013. The drivers escaped unhurt.

Traffic comes to a stop due to a blockade of burning tires on the outskirts of the Bahraini capital Manama on April 18, 2013.

A protester flashes the victory sign after setting tires on fire to block a road on the outskirts of the Bahraini capital Manama on April 18.

A bulldozer used by the police to clear the streets passes graffiti in memory of killed protesters that reads "Don't race on our blood," in Duraz village, north of the Bahraini capital Manama, on April 18.

A riot police officer jumps a fence to extinguish a tire fire set by Bahraini anti-government protesters in Sehla, Bahrain, on April 18.

Gerald Sousa's team charges down the trail at the start of the Iditarod in Willow, Alaska, on March 3.

Four-time Iditarod champion Jeff King greets fans as his team charges down the trail at the start on March 3.

Peter Kaiser's team charges down the trail during the start on March 3.

A dog from Jeff King's team leaps into the air before it hits the trail on March 3.

Dogs wait to run in the race on March 3.

A helicopter flies over driver Nasser Al-Attiyah of Qatar and co-driver Lucas Cruz of Spain competing in the 4th stage of the 2013 Dakar Rally from Nazca to Arequipa, Peru, on Jan. 8. The race finishes in Santiago, Chile, on Jan. 20.

KTM rider Stefan Svitko of Slovakia competes in the 4th stage of the 2013 Dakar Rally from Nazca to Arequipa, Peru, Jan. 8, 2013.

Mini's driver Lonid Novitskiy of Russia competes during Stage 4 of Dakar between Nazca and Arequipa, Peru, on Jan. 8.

Eduard Nikolaev, Sergey Savostin and Vladimir Rybakov of Russia race their Kamaz truck on a beach during the 2013 Dakar Rally on Jan. 8.

U.S. Robby Gordon is pictured next to his Hummer in the sand during the Dakar Rally on Jan. 8.

Poland's Jacek Czachor competes during Stage 3 of the 2013 Dakar Rally between Pisco and Nazca, Peru, on Jan. 7. The rally takes place in Peru, Argentina and Chile from Jan. 5 - 20.

Russian driver Vladimir Vasilyev overturns with his vehicle during Stage 3 or the 2013 Dakar Rally in the Nasca desert, about 450km south of Lima, Peru.

Spectators watch as co-pilots Czech Republic's Tomas Vratny, Miskolci Jaroslav and Milan Holan compete with their Tatra truck.

Sherco's rider Alain Duclos jumps during Stage 3 of the Dakar Rally.

Sherco's rider Alain Duclos jumps during Stage 3 of the Dakar Rally.

Dressed as a princess, Jennifer Knoepfel stands in the pits waiting for the next race during the Saturday night stock car races at Agassiz Speedway in Agassiz, British Columbia on July 7. Jennifer wore the long gown and tiara as part of her duties presenting the trophies to the winners of the night's competition.

Late model sportsman stock cars compete in the premier race of the night at Agassiz Speedway in Agassiz, B.C. on Aug. 11. From spring until autumn every two or three weeks competitors and spectators gather on Saturday nights to watch or take part in the races for prize money, points and local honours at the 42 year old race track.

Rookie race driver Chelsey O'Reilly,14, sports her good luck pink fingernails while waiting to take part in qualifying in the Streets stock car category at Agassiz Speedway on July 7.

A stock car that has spun out is rammed by two other competitors during the Saturday night races at Agassiz Speedway on July 7.

Kelly Moto sits in his street stock car as he is towed into the pits during the Saturday night races at Agassiz Speedway on July 21. Moto's race night was over early after his car suffered a major mechanical breakdown during qualifying.

A member of a stock car pit crew takes a break while the car was on the track qualifying during the Agassiz Speedway Saturday night stock races on July 21.

Driver Troy Globe stands with the trophy girl after winning a sprint race during the Saturday night stock car races at Agassiz Speedway on July 21.

Margaret O'Reilly talks with Cameron Jones, as her daughter Chelsey uses her mobile phone, at Agassiz Speedway during the Saturday night stock car races on Aug. 11. Both Chelsey and Cameron compete in the races and hang out together when not on the track.

Visitors looks at the vehicles at an oval track of a velodrome during an old timer car and motorcycle show in Budapest on May 1.

Men ride bicycles on an oval track of a velodrome during an old timer car and motorcycle show in Budapest on May 1. The event brought life again into the 412 meter long Millennial Velodrome of Budapest, which was built in 1896 and is one of the oldest arenas for track cycling in Europe.

An elderly man rides his motobike on an oval track of a velodrome during an old timer car and motorcycle show in Budapest on May 1. The event brought life again into the 412 meter long Millennial Velodrome of Budapest, which was built in 1896 and is one of the oldest arenas for track cycling in Europe.

Drivers drive their vehicle on an oval track of a velodrome during an old timer car and motorcycle show in Budapest on May 1. The event brought life again into the 412 meter long Millennial Velodrome of Budapest, which was built in 1896 and is one of the oldest arenas for track cycling in Europe.

A woman driver waits besides her car near the oval track of a velodrome during an old timer car and motorcycle show in Budapest on May 1. The event brought life again into the 412 meter long Millennial Velodrome of Budapest, which was built in 1896 and is one of the oldest arenas for track cycling in Europe.

Neptune Collonges ridden by Daryl Jacob jumps the water jump on its way to winning the Grand National horse race at Aintree Racecourse in Liverpool, England, April 14. The annual three day meeting culminates in the Grand National which is run over a distance of four-and-a-half miles, and is the biggest betting race in the United Kingdom.

Neptune Collonges, ridden by Daryl Jacob, center, grey horse, passes Becher's Brook and goes on to win the Grand National at Aintree Racecourse, Liverpool, England, Saturday April 14, 2012. British Grand National favorite Synchronised died Saturday after collapsing during the world's toughest steeplechase, which was won by Neptune Collonges in one of the race's closest finishes.

A man competes in a ride-on mower race in Aukrug-Homfeld, Germany, April 14. Around a dozen teams compete with their modified ride-on mowers with up to 120 horsepower and top speeds of more than 60 mph.