Not really true

來源: 於 2010-10-17 21:25:21 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

3000 lbs car with 4 people will add another 500 lbs or so, that is still 1/6th of the car weight.  The real problem is that with more people, the driver may want to show some skill, or the driver may be participating conversation with more emotion.