No not just about every EV auto have to be developed from scratch like Tesla did, see Ford with their File-150 Lightning. A swap from ICE to EV is totally practical for current cars nowadays. Proton can leverage on that possibility to invest their R&D monies wherever it would count.] https://cvtproton86306.spintheblog.com/34572718/the-best-side-of-cvt-proton