Definitely the future of race sims. The flight sims have had this for a few years now, and Google Earth VR has been with us for six years, so it's taking simracing a while to catch up, but once they nail the close up detail to a believable level then you'll be able to pick anywhere on the planet and go drive there. Something to look forward to. I remember suggesting this on a flight sim forum and also the WMD forum just after the Rift CV1 came out and it got dismissed as impossible (which it may have been at the time). You just need something like Google Earth and bolt on a physics simulation to move you around the space. Then along came MSFS2020, which allows you to see the scenery from some distance away so the close up thing isn't a big deal, and the rest is history. Once they glue the relevant tech together, this will be standard practice for sims I reckon.