I want holden and ford V8 supercars!

Could someone please help me...

i have a good PC bout a year old and it runs LFS at bout 8 FPS thats right 8!!!! im not even going to atempt to play LFS at tht rate. i have tried everything in the formus to boost it but nothing makes a difference..! My computer is determined to keep it at 8!!!! please help:bannana_g