Extract the archive to /your crashday folder/= filler
If you spent hours and hours on playing games like Micro Machines, Stunts! or Death Rally - you will love this one. Basically, it's just the old and good arcade racing with guns, in various sceneries and gameplay modes. In Crashday, you can compete with other insane drivers for the first place, for the best stunt, biggest crash and many more - there are seven unique game modes.
Also, Crashday features 12 vechicles (with tuning option), 30 career events in the story mode, tons of weapons and an integrated level editor.