(Bloomberg) — Tesla Inc. shares climbed 33% in September as investors rallied around Chief Executive Officer Elon Musk’s renewed focus on the company. That’s drawing attention to whether the key third-quarter sales figures coming later this week will be strong enough to sustain the momentum. Most Read from Bloomberg The electric-vehicle maker’s shares notched their best month in almost a year, putting them among the 10 best performers in the S&P 500 Index this month. Even more striking is Tesla’s vertic ...