REUTERS[SAN FRANCISCO] Tesla beat Wall Street estimates for fourth-quarter revenue on Wednesday (Jan 28) despite the Elon Musk-led automaker delivering fewer-than-expected vehicles in the holiday quarter. Tesla also said that it had entered into an agreement to invest about US$2 billion in Musk’s xAI startup. Tesla’s vehicle business has been under strain as rivals roll out newer models, often at lower prices. A US tax incentive for electric vehicle has also ended, and Musk’s far-right political rhetoric have alienated some customers. Some analysts view it as a deliberate trade-off to expand the vehicle fleet that can later generate higher-margin revenue from software.