(Bloomberg) - Colorado drivers bought 9,446 electric vehicles in the most recent quarter, but Carrie Atiyeh is particularly psyched about 45 of them.Ītiyeh, associate director of transportation fuels and technology at the Colorado Energy Office, is one of the architects of the state’s Vehicle Exchange Program, which hands out a rebate of up to $6,000 to anyone who buys a new EV while surrendering a combustion-engine car.