RE: sim
Find a sim that can run on linux. Then you can install linux on your ps3 and install the sim on your ps3 on linux. No clue if that would work, but its possible. You can try ubuntu, fedora or yellow dog linux to install on your ps3. The download for this should be on the companies website.
I know you can install programs on linux on the ps3 but you may have a problem when you hook up your controller to your ps3. You may need to install something extra that can make the ps3 recognize the controller. Ask in a tech/video game forum. You probably will get better answers.