To be fair, Lotus doesn't make the Elise anymore and don't forget that the original Roadster shared the chassis with the Elise. So this is actually a great move.
Tesla CEO, Elon Musk, this week announced that the engineering and plans for the original Roadster have been made open source. Accompanying the announcement, Tesla published a webpage of PDF documents, including complete service documentation, diagnostic software, and circuit and connector information. This move is uncharacteristically repair-friendly, and it could help keep the original Roadsters on the road for a little longer.