imac g3 gaming (again) any good racing games?

[auto123]

I got addicted to a free game called trackmania nations forever on my wintel pc, and I was using it in a very poorly ventilated environment (thick comforter) and the computer caught fire. So now I am out of a good racing game for the computer, and I just got my imac internet enabled.

so I was wondering if there are any good games (preferably FPS or racing) that will play on a 700 mhz cpu and 16mb video ram imac g3

Thanks
-Tyler