Understanding how helical, curved beams operate — how their spiral cuts accommodate angular and parallel misalignment, axial motion, and system vibrations — is the key to knowing how they will perform ...

The single-motor version of the 2025 Polestar 3 has considerably less power than the already on-sale dual-motor versions—299 horsepower versus 489. It’s nearly 3 seconds slower from 0-60. So yeah, ...