51.   After nearly a century of making comfortable livings selling cars in their immediate areas, car dealers now face one of the most difficult environments in years.

52.   After selling her car, Ms. Henderson had enough money to enroll.

53.   But automakers have balked at being told how many electric cars to sell, and have sued every state that has tried it.

54.   But despite erroneous news reports to the contrary, officials of Mercedes-Benz say they have no immediate plans to sell the car in the United States.

55.   But car makers still pore over their maps when deciding how to sell cars.

56.   But I did remember that Dad had to sell the car when gas rationing began in World War II.

57.   But is GM selling any cars this quarter?

58.   But it could sell cars.

59.   But it does not expect to sell many cars to individuals, even ardent environmentalists, in the near future, because its costs are so high.

60.   But since then, many Web sites that sell cars have shut down, including IMotors.com and Greenlight.com.