The INNengine e-Rex is described as a one-stroke engine, though it actually has two strokes. But it's not dirty like traditional two-strokes.

When INNengine's designs first made headlines in February 2023, I tried to talk to the Spanish company. I never heard back from them, something I saw as a sign not to insist on learning more about ...

Add Yahoo as a preferred source to see more of our stories on Google. It’s a bit counterintuitive, but the Spanish company INNengine is making the case that the electric car may very well spur massive ...