From what I recall, the editorial page was much the same before the Murdoch era. However, the rest of the paper was a fairly stark contrast, and I didn't have the general impression that they slanted the actual news. After Murdoch bought it I lost faith in their reporting, but I never held the editorials against them too much prior to that. The opinion section seemed like a quarantine for the right wing types.

Back in Apple's pre-Steve Jobs era, though, I did get the impression that the news stories were consistently bashing Apple in a way that made it seem like they had some ulterior motivation. Apple would always be described as "troubled" or "beleagured" like a mantra. And it's passed into mythology that Apple was near bankruptcy when in fact they hoarded cash and abhorred debt.

So I'm not really sure if any anti-Tesla agenda is really coming from Murdoch.