仅节录关于公差的这段原文
原文：
Most of the design tolerances of the Model 3 are already better than any
other car in the world. Soon, they will all be better. This is not enough. We
will keep going until the Model 3 build precision is a factor of ten better
than any other car in the world. I am not kidding.
Our car needs to be designed and built with such accuracy and precision that,
if an owner measures dimensions, panel gaps and flushness, and their
measurements don’t match the Model 3 specs, it just means that their
measuring tape is wrong.
Some parts suppliers will be unwilling or unable to achieve this level of
precision. I understand that this will be considered an unreasonable request
by some. That’s ok, there are lots of other car companies with much lower
standards. They just can’t work with Tesla.
针对公差这段话充满疑问
DTS是Dimentional Technical Specification缩写
GD&T则是Geometric Dimensioning and Tolerancing
一般车辆开发阶段会制定DTS(如何定义，制造可行性也得考虑)
整车尺寸技术规范，像是车辆外观(内饰、外饰件)面差、间隙等
以DTS为目标，分解公差后才会有个别零件GD&T，GD&T跟模具、夹具、检具这些有关
供应商要做的就是依据车厂GD&T要求，提供符合的料件
车厂对供应商就是用这些GD&T作为验收标准
而最终呈现在整车上的公差应该由车厂把关
换句话说
即便最后量产存在公差问题
只要供应商有符合当初车厂订的GD&T，那根本就不甘供应商的事
而当初供应商没有符合车厂订的GD&T，那在验收时就可以退件了
不用特地发言说供应商没达到公差标准就滚蛋 (本来车厂也都这样做XD)
所以嘛，不应该有车子量产后发现公差过大后把问题推给供应商才对
a factor of ten better than any other car in the world
另外也很颇好奇这10倍到底是?