You're looking for a download link for Gangstar West Coast Hustle on Android. Here's what I found:
Search for “Gangstar West Coast Hustle APK + OBB” on a verified site like Archive.org (where abandonware is often preserved) or APKPure . Download Free Gangstar West Coast Hustle For Android
Gangstar Vegas is the direct evolutionary descendant and is officially supported on the Play Store. You're looking for a download link for Gangstar