This is real proof that the Android developer's community is capable of some really awesome things. The 4 year old LG Nexus 4, which originally launched with Android 4.1 Jellybean, is indeed capable of running Android Nougat. As a refresher, the Nexus 4 runs on a 1.5GHz quad-core Snapdragon S4 processor which is paired with just 2GB of RAM. Recognized contributor at XDA Developers, Zaclimon has ported an Android Nougat build for the original LG-Nexus. This isn't by ANY means, a daily driver. Flash at your own risk!! Also, expect crashes because you will see a "ton" of them. - Zaclimon...
Source: http://www.gsmarena.com/android_nougat_ported_to_the_lg_nexus_4-news-20165.php