Is the LEGO Racers 1 game available for free now?
It's "abandon ware", however the game is still under copyright, so you cannot legally obtain a copy of it. However if the owner of the IP (LEGO) doesn't care enough to enforce the copyright, the chance you will be sued or fined is close to zero.

Something else you need to consider: There is no guarantee that the game you download from an abandon ware website is unmodified. It might contain malicious code, compromising the security of your system.