X-Prize: Software glitch costs one team $2.5 million

One other alternative class vehicle was eliminated from competition Monday. A side-by-side twoseat hybrid vehicle made by a team of Western Washington University students failed to pass the X Prize's braking and lane change tests. Like Edison2's alternative car, the team's vehicle had previously passed the same tests.

"It was what I might call a cruel twist of fate for both those teams," said Bob Larsen, the X Prize's race director.