Problems on SGI systems:
Q: It runs really slow.
A: On SGI O2's, yes it's quite slow. Turn off a lot of graphics settings (the sky for example). You really need an Octane or higher with texture memory.
I've seen an Octane paint the track red.
I know what this is (GL_TEXTURE_ENV_MODE set to GL_MODULATE, so that textures mix with the basic color instead of disregarding the color value and taking the texture colors directly). As it does not appear on all other systems, it looks to be a bug in the OpenGL driver.
Sound may be choppy.
In fact, I put out twice as much sound as I expect to have, but this works on O2's somehow!
(rather & worse, I think there's a timing bug which makes Racer go twice as slow on all SGIs)
It won't run on a MIPS3; there's some template stuff that gets compiled as MIPS4, and so I believe R4000/R4400 processors and such won't work. R5000+, R12K+ should work though.