The correct filename is often: com.eamobile.nfsmostwanted_na_232.apk or similar.
If the official mobile APK disappoints you (and it likely will), you have two powerful alternatives to play the genuine PC/PS2 version on your Android phone.
Downloading the APK and OBB files of copyrighted games without owning the original title constitutes piracy. If you love the franchise, consider purchasing the official EA titles on the Play Store to support the developers.