Tesla is offering a year of free Supercharging when you buy a Model 3 in the US.

Tesla is offering a year of free Supercharging with the Model 3 Premium and Performance in the US. Save between $800 and $1,200 annually. Take advantage of the campaign!
Tesla has been using its free Supercharger program to increase sales of its more expensive models, such as the Model S and Model Superchargers. This offer is valid for new Model 3s only and does not cover other versions, such as the base rear-wheel-drive model. For potential electric buyers, the savings could be significant. Depending on driving habits, a typical Model 3 owner can travel between 12,000 and 15,000 miles per year. With fast charging costs averaging $0.40 to $0.50 per kilowatt-hour, annual savings can be between $800 and $1,200.

Automobile Magazine – Spain