This is the biggest danger. Mod sites are notorious for injecting adware. Some fake "mod menus" are actually banking trojans or crypto miners. The APK requests permissions for SMS, Contacts, or Microphone (a racing game does not need this).
Standard races require you to drift to fill your nitro meter. With the mod menu, you can toggle —press the boost button once, and you will rocket through the entire track without stopping. Download Beach Buggy Racing 2 Mod Menu