I think Carnegie Mellon's "Sandstorm" was the one which went the farthest.
SciAutonics I, 'RASCAL.' from Thousands Oaks, Calif. starts the race Saturday, March 13, 2004, near Barstow, Calif. A $1 million race across the Mojave Desert by driverless robots ended Saturday after all 15 entries either broke down or withdrew, a race official said. The Defense Advanced Research Projects Agency, DARPA was sponsoring the Grand Challenge to foster development of autonomous vehicles that could be used in combat. Officials foresee using the driverless, remote control-free robots to ferry supplies in war zones.
Team TerraMax 'TerraMax,' autonomous robotic vehicle from Oshkosh, Wis. gets the green flag to start the DARPA Grand Challenge Saturday, March 13, 2004, near Barstow, Calif.
Jeff Elings, left, a member of The Golem team looks under the hood of 'Golem I,' a converted pick-up truck.
Mechanic Spencer Spiker works under the hood of Carnegie Mellon University's 'Sandstorm,' a converted Humvee, Saturday, March 13, 2004, near Barstow, Calif. 'Sandstorm,' took off at a fast clip, only to break down about 45 minutes into the race, in an unprecedented race for $1 million in government-funded prize money that ended Saturday after all 15 entries either broke down or withdrew, a race official said The Defense Advanced Research Projects Agency, DARPA was sponsoring the Grand Challenge to foster development of autonomous vehicles that could be used in combat.
The Golem Group from Santa Monica, California approach the first leg of the DARPA Grand Challenge from Barstow, California to Primm, Nevada with a robotic autonomous vehicle.
Team CIMAR removes barbed wire from the chasis of its vehicle after failing to finish the DARPA Grand Challenge from Barstow, California to Primm Nevada, with an robotic autonomous vehicle, March 13, 2004. Thirteen robotic vehicles set out on a 140-mile race across the Mojave desert in California on Saturday with the goal of one day running dangerous missions in war zones without risking the lives of U.S. soldiers. Most of the vehicles broke down within sight of the starting gate near Barstow.
SciAutonics II, from Thousand Oaks, California, starts the DARPA Grand Challenge from Barstow, California to Primm, Nevada, with an robotic autonomous vehicle.
Red Team gets the green flag to start the DARPA Grand Challenge from Barstow, California to Primm Nevada.

SciAutonics I, 'RASCAL.' from Thousands Oaks, Calif. starts the race Saturday, March 13, 2004, near Barstow, Calif. A $1 million race across the Mojave Desert by driverless robots ended Saturday after all 15 entries either broke down or withdrew, a race official said. The Defense Advanced Research Projects Agency, DARPA was sponsoring the Grand Challenge to foster development of autonomous vehicles that could be used in combat. Officials foresee using the driverless, remote control-free robots to ferry supplies in war zones.

Team TerraMax 'TerraMax,' autonomous robotic vehicle from Oshkosh, Wis. gets the green flag to start the DARPA Grand Challenge Saturday, March 13, 2004, near Barstow, Calif.

Jeff Elings, left, a member of The Golem team looks under the hood of 'Golem I,' a converted pick-up truck.

Mechanic Spencer Spiker works under the hood of Carnegie Mellon University's 'Sandstorm,' a converted Humvee, Saturday, March 13, 2004, near Barstow, Calif. 'Sandstorm,' took off at a fast clip, only to break down about 45 minutes into the race, in an unprecedented race for $1 million in government-funded prize money that ended Saturday after all 15 entries either broke down or withdrew, a race official said The Defense Advanced Research Projects Agency, DARPA was sponsoring the Grand Challenge to foster development of autonomous vehicles that could be used in combat.

The Golem Group from Santa Monica, California approach the first leg of the DARPA Grand Challenge from Barstow, California to Primm, Nevada with a robotic autonomous vehicle.

Team CIMAR removes barbed wire from the chasis of its vehicle after failing to finish the DARPA Grand Challenge from Barstow, California to Primm Nevada, with an robotic autonomous vehicle, March 13, 2004. Thirteen robotic vehicles set out on a 140-mile race across the Mojave desert in California on Saturday with the goal of one day running dangerous missions in war zones without risking the lives of U.S. soldiers. Most of the vehicles broke down within sight of the starting gate near Barstow.

SciAutonics II, from Thousand Oaks, California, starts the DARPA Grand Challenge from Barstow, California to Primm, Nevada, with an robotic autonomous vehicle.

Red Team gets the green flag to start the DARPA Grand Challenge from Barstow, California to Primm Nevada.