Subaru released a lineup of SUVs that are considered to be self-charging which I think is fantastic but I don't quite understand how these function exactly.
Is it using petrol to charge or electric to charge?
This is not really new technology. A lot of Hybrids do this. They use petrol to charge the battery and then the car will switch back and forth between petrol and electric to maintain power.
Yeah, these just function as a means to make more use of the petrol. Instead of everything running on petrol, the petrol powers the battery and allows the car to run on that.
You can save upward of 60% on petrol depending on the make and model of the car.