What do you mean interior EV design? Why does it have to differ from an EV to a gas powered car? You might have some different gauges, a control or two that is different, but other than that, why does an EV have to look a certain way?
> Why does it have to differ from an EV to a gas powered car?
Because they have different design constraints.
It didn’t take long for car manufacturers to figure out that a horseless carriage doesn’t have to look like a carriage. Early ones such as https://en.wikipedia.org/wiki/Benz_Velo certainly did. You can even see it somewhat in the Ford model T.
Similarly, an electric car doesn’t need an exhaust, and if the engines are in the wheels it doesn’t need a transmission tunnel.
That changes the design constraints, so chances are the optimal design looks different.
