那就说说四驱车和SUV。
当属于下列三种情况之一时,四驱车、或SUV是非常有用的:
* 行驶在稀软的泥土路(如乡野里);
* 行驶在积雪不能及时清理的小街里;
* 需要拖挂东西(例如,你有一条船)。
在上述情况下,四轮的吃力的重要性就显现出来了。如过两个轮子下陷,另外的两个轮子仍然能驱动车子。
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above is true. when the car is traped in the snow, 4 wheel drive is very useful. after suffered several time from trapping in the snow last winter, i bought a new 4X4 suv. in the recent storm, I was very impressed by the 4 wheel drive advantages.
但是,请您想象一下,如果车轮打滑(没有下陷)时,尤其是在踩刹车时,四驱有用吗?
显然,这个时候,不管你多少轮子驱动,都是一样的!
可是,在心理上,你仍然认为你开的是四驱车,没问题。于是,问题就出现了。
-- 开四驱车或SUV在打滑的路面上出事的比率,高于二驱车。
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not exactly. unless it is all time four wheel drive vehicle, the 4X4 can set 2 wheel drive or 4 wheel drive at any time. like mine, 99% time is used in 2X4, also when the speed over 40km/h, it automatically swtiches from 4X4 to 2X4 when you apply to use four wheel drive function.