消费者是否愿意为了安全冗余付费是个未知数，否则沃尔沃应该是全球销量第一。
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第二，市场上油车智驾，老百姓不认可。。关于这个话题，51吃瓜提供了深入分析
Pricing and Availability
Use this when you start an ambitious refactoring. Doing baby steps and keeping the code in a shippable state gives you incredible productivity.