Ключевые слова: alternative energy, automobiles, ca, california, car, car race, cars, color photography, electrathon, electric, electric vehicles, energy, engineering and technology, environmentalism, expo, green, human assistance, industry, motor vehicles, new transportation, north america, race, racetrack, renewable energy, science, solar, solar energy, start, technology, transportation, ukiah, united states, united states of america, us, usa, vehicles,