Tesla recently updated the Model Y and Model 3, leaving the S and X slightly behind the curve. That just changed, as the automaker announced updates to the two more expensive vehicles, and prices are climbing as a result.

Tesla has announced a round of upgrades for its high-end Model S and Model X electric vehicles in the United States, accompanied

Tesla's two top-flight flagship models finally received their long-awaited refresh today, but enthusiasts might be a little underwhelmed.