NASA released a treasure trove of image manipulation, feature extraction, image compression and simulation software. They also release a bunch of 3D models. This is all free courtesy of U.S. taxpayers.
Yes, the Curiosity Rover is a perfect companion for the playa domain. That particular model is highly detailed. It will take a bit of work to lower its poly-count.
The crawler is 146,000 poly. It too can use some decimation work.
I’ve been trying to read in these forums about the state of vehicle development in HiFi. I swear I saw someone in Welcome flying around in/on one of those MiniCooper cars from the Clara marketplace. But it seems that functionality is still in the works.