单项选择题

Passage Two 　　
The old Volkswagen (VW) Beetle — “The Bug” — is making a comeback (回潮). People who own them are planning to keep them forever. People who don’t own them are paying high prices when they can find one for sale. It’s more remarkable when you realize that VW Company has already stopped producing them. 　　
A spokesman for Volkswagen of America says there were about five million “Bugs” on American roads in 1977. That was the last year they were shipped to America. VW calculates (估算) that about four million of them are still running, and running, and running. 　　
Used car businessmen say they can’t keep “Bugs” on their lots these days.They feel it’s because these cars have a history of reliable (牢靠的), inexpensive transportation. The cars average about 30 miles per gallon of gas. 　　
But all hasn’t been smoothly going for the “Bugs”. The heating system is poor.And since it travels very close to the ground, large cars tend to splash(溅) it with winter’s snow and mud. Some in the safety field consider the Beetle as defenseless against heavier cars. But the National Highway Traffic Safety Administration(管理部门)has nothing that shows any problem with them at all.

What can be concluded according to the National Highway Traffic Safety Administration（）

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