I suspect Tesla will do just that. They already have open-source patents (vs Apple that sues over mice and corners or look and feel - check with MicroSoft and Samsung) . Tesla is just a little busy following all the different international business laws, safety laws, tax laws all those other things it takes to build an international auto company - which very few have done over the last 40 years at scale. Which might explain why Lotus (and others) never bothered. Tesla mission is to accelerate the electrification of transport which might help explain why no dealers, transparent pricing (everyone pays the same), continuous improvement (even if customers complain about short/no notices of improvement offerings), software updates, no wasted money on Madison Ave advertising BS (press really must hate that). I think other OEMs may have a worthy competitor. (Elon has said Service would not be a profit center, which of course Wall St. won't be happy about. We shall see how that plays out.) To steal a Madison Ave phrase, "not your father's car company" (or was it Buick??) Interesting times, even if a little boring and pie in the sky at times.