Tesla Inc (NASDAQ:TSLA) has begun testing robotaxis in Austin without a safety monitor driver. Here's what this could mean for the company and stock going forward, according to one analyst.The Tesla Analyst: Goldman Sachs analyst Mark Delaney maintained a Neutral rating on Tesla with a price target of $400. The analyst previously lowered the price target from$425 to $400 after third-quarter financial results.Read Also: Tesla Q3 Highlights: Record EV Deliveries, Falling Profits, AI Ambitions AheadThe Analys ...