Subtle engineering changes over time made the Model X lighter, even though it looks nearly mostly the same since 2015 ...

For most of Tesla's history, it had only the Model S sedan to sell. That changed with the introduction of the Tesla Model X SUV. Suddenly, you had choices, but it was either a large sedan or large SUV ...

The debut of the Tesla Model X sport utility vehicle has renewed outrage over a big business tax break known as the Hummer loophole. It applies to passenger cars with a gross vehicle weight rating ...