https://www.govtech.com/fs/transportation/BYD-Electric-Buses-Face-Mechanical-Problems-in-Southern-California-as-Agencies-Hand-Them-Contracts.html

In the following months, transit logs show the buses repeatedly stalled on city hills, including a downtown incline a little more than a mile from BYD’s Los Angeles headquarters. Once, the driver radioed that the bus was unsafe, rolling backward.

Though Metro was promised a range of 155 miles per charge, Metro records show the buses never went farther than 133 miles, and were forced back to the garage to recharge in as little as 78 miles. Factoring in breakdowns and other service interruptions, Metro reports show drivers realized no better than an average of 59 miles between charges. Most months, according to Metro records, the buses managed fewer than 400 miles between road calls, requiring emergency service or a return to the garage 10 times worse than the rest of the fleet.

Road tests and driving logs in nine cities show variability in bus range, and averages below what the company claims. Antelope Valley managers travel to transit conferences across the country touting a 180-mile range on its BYD buses, but internal logs show the initial average three years ago was 170 miles, and since December has fallen to 130. Some drivers muster less than 100 miles. In Gardena, where the district has limited further purchases, the average was below 140 miles.

Operators and consultants at Stanford University, a federal test track in Pennsylvania, and the cities of Phoenix and Long Beach also documented ranges dozens of miles below BYD’s claims. And in Long Beach, consultants said bus range dropped to 108 miles when air conditioning was used in mild weather. They warned performance could be worse in bad weather, and the bus would lose more range as its batteries degrade as much as 30 percent.

原文很长，自己上翻译软件看吧。反正就是机械故障很多，结构测试出问题，续航达不到宣传值。

美国劳动力太贵，这些问题就显得突出了。如果劳动力和中国一样便宜的话，这些都不是事儿。

只是BYD的不行
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