Following the release of Tesla's quarterly earnings, shares surged 4% in after-hours trading despite earnings falling short of expectations. The excitement was fueled by advancements in Tesla's self-driving technology. CEO Elon Musk highlighted progress in this area, with plans for unsupervised testing at the Austin facility starting in June, and a potential public launch later in the year. Tesla aims to boost vehicle sales following a previous decline and intends to introduce a more affordable model soon.