Tesla Model S and Model X ranges get big upgrades

Tesla is giving its Model S and Model X cars much-needed boosts — just as its older offerings have seen sales languish.

Range and charging capabilities will be upgraded in both, the carmaker announced in a blog post Tuesday. Tesla is also bringing back a cheaper version of the cars that don't have as much range.

The new Model S can now get 370 miles on a single charge, while the Model X steps up to 325 miles thanks to an all-new drivetrain design. Previously, these cars got 335 miles and 295 miles out of their batteries, respectively. The cars will be slightly less-expensive than what used to be Tesla's longest-range options: starting at $88,000 for the S and $93,000 for the X. These upgrades come with no changes to the cars' 100 kWh battery packs. The improvements will start at its Fremont factory this week.  Read more...