The electric car company run by Elon Musk is facing increasing competition, but investors have focused mostly on the prospects for Tesla’s self-driving technology.

Tesla’s adjusted earnings rose 3% on growth in its energy and service businesses, helping it regain some momentum in the final months of what has been a roller coaster year for the world’s most valuable automaker.

The company faces a number of questions about its future, including its plan to release more affordable models.

United Rentals , which rents out equipment to the manufacturing and construction sectors across North America, missed analysts' estimate for fourth-quarter profit on Wednesday, hit by inflationary costs.