Couldn't find info, just curious, what's an AR interface ?
HUD are great, make sure you've checked the racer.nl docs, you can create 2D / 3D & finally for TC (track cams)...
Ruud/Mitch will probably add more, since they want to introduce turbo & stuff like that...
I've download it numerous times, played it for a while, got annoyed at the bugs or got bored, and then.. of course, returned to Racer
Surely not something that we would be implementing ourselves in the near future .. But newton, the physics engine we use, is working on destructable bodies (Julio has a working proof of concept) and soft bodies are also on the list ..
So things could get exciting !