APK MOD INFO
Name of Game: Hot Wheels Showdow
VERSION: 1.2.10

Name of the cheat, mod, or hack (credits: wendgames):
-UNLIMITED MONEY

Hot Wheels Showdow MOD APK 1.2.10 (Unlimited Money)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb