I'm not sure I'd call Tesla a "scrappy upstart". They're a publicly traded company with a market cap of $28B, versus GM's $47B. They employ 14,000 people. That's a lot less than GM, but it's also not an insignificant amount. At what point does one stop being a scrappy upstart, and start being a mature company?
It may not seem like much of a difference, but when you're trying to spin as a new arrival...
Similar to the DPR / Silk Road case, where Ross's attorneys tried to paint him as "just a young kid making some silly mistakes". "Youthful indiscretion".
Ross was about to turn thirty.
Not the "same" thing, but how many teenagers do you know who wouldn't be offended by being called "barely 10"?
If GM can leverage one of their platforms for most of the Bolt it can dramatically lower the cost. What they do with the Bolt can bleed back over to the rest of the platform.