Tesla engineers say Model 3 parts need substantial rework after production

2018 Tesla Model 3Electric-car maker Tesla is known for troubled launches, at least for the four products it's offered since the first Roadster in 2008. But the launch of the Tesla Model 3, its lower-priced electric sedan, may be the most challenging yet—and it may be the Tesla with the highest expectations. The first 30 cars, now accepted to be largely...