"But recent improvements to the Model X were looking slim to none, but it appears most of the fixes actually happened under the body, at least according to Tesla's Vice President of Powertrain, Lars Moravy. In a recent interview with Car and Driver, Moravy detailed all of the changes to the 2026 iteration of the vehicle, which was about 400 pounds lighter than it was originally."
"Tesla also got "almost 80 pounds out of the interior bits and pieces," which "included making parts thinner, different manufacturing process choices, and incorporating airbag-deployment requirements into the headliner fabric," the report said. Additionally, the standard five-passenger, bench seat configuration saved 50 pounds by ditching pedestal mounting. This also helped with practicality, as it helped the seat fold flat."
The 2026 Model X is roughly 400 pounds lighter than previous versions due to multiple hardware and manufacturing changes. The rear motor changed from an induction-type design to a permanent-magnet unit, and half-shafts were optimized, saving about 100 pounds. Interior components shed nearly 80 pounds through thinner parts, different manufacturing processes, and combining airbag-deployment requirements into the headliner fabric. A five-passenger bench seat eliminated pedestal mounting to save 50 pounds and fold flat. High-voltage wiring optimization and a switch from copper to aluminum saved 44 pounds. Cooling simplification and in-house megacastings trimmed weight and improved torsional stiffness.
Read at TESLARATI
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